EXHIBIT 24.1
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                                POWER OF ATTORNEY


  KNOW ALL MEN BY THESE PRESENT, that I, GEORGE SOROS, hereby make, constitute
  and appoint each of ARMANDO T. BELLY, JODYE ANZALOTTA, MARYANN CANFIELD, JAY
  SCHOENFARBER and ROBERT SOROS. acting individually, as my agent and
  attorney-in-fact for the purpose of executing in my name, (a) in my personal
  capacity or (b) in my capacity as Chairman of, member of or in other
  capacities with Soros Fund Management LLC ("SFM LLC") and each of its
  affiliates or entities advised by me or SFM LLC, 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, futures contracts or other investments, and any
  other documents relating or ancillary thereto, including without limitation
  all documents relating to filings with the Commodity Futures Trading
  Commission and National Futures Association, 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 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 and any information statements on Form 13F
  required to be filed with the SEC pursuant to Section 13(f) of the Act.

All past acts of these attorneys-in-fact in furtherance of the foregoing are
hereby ratified and confirmed.

Execution of this power of attorney revokes that certain Power of Attorney dated
as of the 11th day of March 2005 with respect to the same matters addressed
above.

This power of attorney shall be valid from the date hereof until revoked by me.

IN WITNESS WHEREOF, I have executed this instrument as of the 16th day of June
2005.


                                           GEORGE SOROS


                                           /s/ Dan Eule
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                                           Dan Eule
                                           Attorney-in-Fact for George Soros