UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-PX
               ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED
                        MANAGEMENT INVESTMENT COMPANIES

             Investment Company Act file number            811-06495
                                               ---------------------------------

       FLAHERTY & CRUMRINE PREFERRED INCOME OPPORTUNITY FUND INCORPORATED
      --------------------------------------------------------------------
               (Exact name of registrant as specified in charter)

                      301 E. Colorado Boulevard, Suite 720
                               PASADENA, CA 91101
            -------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                               Donald F. Crumrine
                            Flaherty & Crumrine Inc.
                      301 E. Colorado Boulevard, Suite 720
                               PASADENA, CA 91101
                   ------------------------------------------
                     (Name and address of agent for service)

        Registrant's telephone number, including area code: 626-795-7300
                                                           ---------------

                      Date of fiscal year end: NOVEMBER 30
                                              -------------

             Date of reporting period: JULY 1, 2003 - JUNE 30, 2004
                                      -----------------------------

Form N-PX is to be used by a registered  management  investment  company,  other
than a small business  investment company registered on Form N-5 (ss.ss.  239.24
and 274.5 of this chapter), to file reports with the Commission,  not later than
August 31 of each year,  containing the registrant's proxy voting record for the
most recent  twelve-month  period  ended June 30,  pursuant to section 30 of the
Investment  Company Act of 1940 and rule 30b1-4  thereunder (17 CFR 270.30b1-4).
The Commission may use the information  provided on Form N-PX in its regulatory,
disclosure review, inspection, and policymaking roles.
A registrant is required to disclose the information specified by Form N-PX, and
the Commission will make this  information  public. A registrant is not required
to respond to the  collection of  information  contained in Form N-PX unless the
Form displays a currently  valid Office of Management and Budget ("OMB") control
number.  Please  direct  comments  concerning  the  accuracy of the  information
collection  burden  estimate and any  suggestions for reducing the burden to the
Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington,
DC 20549-0609.  The OMB has reviewed this  collection of  information  under the
clearance requirements of 44 U.S.C. ss. 3507.





                               PROXY VOTING RECORD

                    FOR PERIOD JULY 1, 2003 TO JUNE 30, 2004

                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                   FORM N-PX
ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANY



                                                      
Investment Company Act file number:                      811 - 06495

Exact name of registrant as specified in charter:        Flaherty & Crumrine Preferred Income Opportunity Fund Incorporated

Address of principal executive offices:                  301 E. Colorado Boulevard,  Suite 720, Pasadena,  California 91101

Name and address of agent for service:                   Donald F. Crumrine, Flaherty & Crumrine Preferred Income Fund Incorporated,
                                                         301 E. Colorado  Boulevard,  Suite 720,  Pasadena,  California

Registrant's telephone number, including area code:      626 - 795 - 7300

Date of fiscal year end:                                 November 30, 2004

Date of reporting period:                                Twelve Months ended June 30, 2004





ITEM 1. PROXY  VOTING  RECORD
-----------------------------


                                                                                 
---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Carolina Power & Light Company                   CPWLP                144141405           12-May-04
---------------------------------------------------------------------------------------------------------------


                                                        VOTE FOR OR AGAINST   VOTE FOR OR AGAINST
MATTER VOTED                  PROPOSED BY   VOTE CAST       PROPOSAL              MANAGEMENT

Approve directors slate         Issuer        No (1)            NA                    NA


---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Central  Illinois Light Company                  CILTM                153645882            27-Apr-04
---------------------------------------------------------------------------------------------------------------

                                                        VOTE FOR OR AGAINST   VOTE FOR OR AGAINST
MATTER VOTED                  PROPOSED BY   VOTE CAST       PROPOSAL              MANAGEMENT

Approve directors slate         Issuer        No (1)            NA                    NA


THURSDAY AUGUST 05, 2004                                             PAGE 1 OF 5





                                                                                 
---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Central  Illinois Light Company                  CILTL                153645304            27-Apr-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Approve directors slate        Issuer        No(1)             NA                        NA

---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Connecticut  Light and Power Company,  The       CNLPL                207597709            25-Nov-03

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Remove 20% limit on unsec.
Debt; receive 1% fee           Issuer         Yes              Against                  Against

Temp. waiver of 10% S/T
debt limit                     Issuer         Yes              Against                  Against

---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Conseco,  Inc.                                   CNCEN                20847D205            04-Sep-03
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Agree to 5th Amended
ReOrg. Plan by Toprs Comm.   Security  Holder  Yes              For                      Against


THURSDAY, AUGUST 05, 2004                                            PAGE 2 OF 5




                                                                                 
---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Conseco,  Inc.                                   CNCEN                20846F201            04-Sep-03
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Agree to 5th Amended ReOrg.
Plan by Toprs Comm.       Security Holder     Yes                For                   Against


---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Conseco,  Inc.                                   CNCEP                20846M206            04-Sep-03
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Agree to 5th Amended ReOrg.
Plan by Toprs Comm.       Security Holder     Yes                For                   Against




---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Duke Energy  Corporation                         DUK                  264399106             13-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Approve directors             Issuer          Yes                For                     For

Ratify auditors               Issuer          Yes                For                     For

Approve  incentives



THURSDAY,  AUGUST 05, 2004                                           PAGE 3 OF 5





                                                                                 
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NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Idaho Power Company                               IDHOP                451380307           20-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Approve directors slate      Issuer            No (1)           NA                       NA

Ratify auditors              Issuer                             NA                       NA


---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Xcel  Energy  Inc.                                XEL E                98389B605           20-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Eliminate  Classified
Board terms.                Issuer             Yes              For                     For

Approve directors slate     Issuer             Yes              For                     For

Approve Director Stock
compensation  plan.         Issuer             Yes              For                     For

---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Xcel Energy Inc.                                XEL C                  98389B407           20-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Eliminate  Classified
Board terms.                Issuer             Yes              For                     For

Approve directors slate     Issuer             Yes              For                     For

Approve Director Stock
compensation  plan.         Issuer             Yes              For                     For



THURSDAY, AUGUST 05, 2004                                            PAGE 4 OF 5




                                                                                 
---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Xcel  Energy  Inc.                              XEL D                 98389B506           20-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Eliminate  Classified
Board terms.                Issuer             Yes              For                     For

Approve directors slate     Issuer             Yes              For                     For

Approve Director Stock
compensation  plan.         Issuer             Yes              For                     For


---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Xcel Energy Inc.                                XEL B                 98389B308           20-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Eliminate  Classified
Board terms.                Issuer             Yes              For                     For

Approve directors slate     Issuer             Yes              For                     For

Approve Director Stock
compensation  plan.         Issuer             Yes              For                     For

---------------------------------------------------------------------------------------------------------------
NAME OF THE ISSUER                         EXCHANGE TICKER SYMBOL       CUSIP        SHAREHOLDER MEETING DATE
---------------------------------------------------------------------------------------------------------------
Xcel Energy Inc.                                XEL G                 98389B704           20-May-04
---------------------------------------------------------------------------------------------------------------

                                                         VOTE FOR OR AGAINST     VOTE FOR OR AGAINST
   MATTER VOTED             PROPOSED BY     VOTE CAST         PROPOSAL               MANAGEMENT

Eliminate  Classified
Board terms.                Issuer             Yes              For                     For

Approve directors slate     Issuer             Yes              For                     For

Approve Director Stock
compensation  plan.         Issuer             Yes              For                     For



Notes:  (1) The  registrant did not cast a vote since the securities in question
were preferred or preference  stocks of a utility  operating  company the common
stock of which was 100%  controlled by the parent company and where the election
outcome was therefore foreordained.

THURSDAY, AUGUST 05, 2004                                            PAGE 5 OF 5





                                   SIGNATURES

Pursuant  to the  requirements  of the  Investment  Company  Act  of  1940,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.


Registrant  FLAHERTY & CRUMRINE PREFERRED INCOME OPPORTUNITY FUND INCORPORATED
          ----------------------------------------------------------------------



By (Signature and Title)*           /S/ DONALD F. CRUMRINE
                         -------------------------------------------------------
                           Donald F. Crumrine, Director, Chairman of the Board &
                           Chief Executive Officer
                           (Principal Executive Officer)


Date              AUGUST 6, 2004
    ----------------------------------------------------------------------------


*Print the name and title of each signing officer under his or her signature.