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                                   EXHIBIT BBB
                         QUANTUM INDUSTRIAL PARTNERS LDC
                                POWER OF ATTORNEY


   KNOW  ALL MEN BY  THESE  PRESENT,  that the  undersigned  QUANTUM  INDUSTRIAL
   PARTNERS LDC (the  "Company"),  an exempted limited duration company existing
   and operating  under the laws of the Cayman Islands does,  pursuant to a duly
   appointed resolution of its Managing Director,  hereby designate,  constitute
   and appoint:

   ARMANDO T. BELLY, JODYE ANZALOTTA,  MARYANN CANFIELD, SEAN CULLINAN,  RICHARD
   D. HOLAHAN, JR. AND ROBERT SOROS

   acting,  singly and not jointly, as its true and lawful agent and attorney in
   fact for the purpose of executing in its name, all  documents,  certificates,
   instruments,  statements,  filings and agreements  ("documents")  to be filed
   with or delivered to any foreign or domestic  governmental or regulatory body
   or required or requested by any other person or entity  pursuant to any legal
   or regulatory requirement relating to the acquisition,  ownership, management
   or disposition of securities or other  investments,  and any other  documents
   relating or ancillary  thereto,  including  but not limited to, all documents
   relating to filings with the United States Securities and Exchange Commission
   (the "SEC") pursuant to the Securities Act of 1933 or the Securities Exchange
   Act of 1934 (the "Act") and the rules and regulations promulgated thereunder,
   including  (1)  all  documents  relating  to  the  beneficial   ownership  of
   securities  required to be filed with the SEC  pursuant  to Section  13(d) or
   Section 16(a) of the Act including,  without limitation:  (a) any acquisition
   statements on Schedule 13D or Schedule 13G and any  amendments  thereto,  (b)
   any joint filing  agreements  pursuant to Rule 13d-1(k),  and (c) any initial
   statements  of,  or  statements  of  changes  in,  beneficial   ownership  of
   securities on Forms 3, Form 4 or Form 5 and (2) any information statements on
   Form 13F required to be filed with the SEC  pursuant to Section  13(f) of the
   Act.

   Each attorney-in-fact is hereby authorized and empowered to perform all other
   acts and deeds, which he or she in his or her sole discretion deems necessary
   or appropriate to carry out to the fullest extent the terms and the intent of
   the foregoing.  All prior acts of each attorney-in-fact in furtherance of the
   foregoing are hereby ratified and confirmed.

   IN WITNESS WHEREOF,  the Company has caused this document to be executed this
   13th day of February, 2002.

                                            QUANTUM INDUSTRIAL PARTNERS LDC


                                            /s/ Curacao Corporation Company N.V.
                                            ------------------------------------
                                            Curacao Corporation Company N.V.
                                            Managing Director

