Exhibit 99.1


                            EXPLANATION OF RESPONSES


(1)  Duquesne Capital Management, L.L.C., a Pennsylvania limited liability
     company ("Duquesne Capital"), serves as the investment manager to Windmill
     Master Fund L.P., a Cayman Islands Exempted Limited Partnership
     ("Windmill"), and several other investment funds (including, but not
     limited to, Windmill, the "Funds"). Stanley F. Druckenmiller ("Mr.
     Druckenmiller" and, together with Duquesne Capital and Windmill, the
     "Reporting Persons") serves as the managing member of Duquesne Capital and
     also serves as the managing member of Duquesne Holdings, LLC, a limited
     liability company organized under the laws of Anguilla, British West
     Indies, which acts as general partner to Windmill and certain of the Funds,
     and which has the power to replace Duquesne Capital as investment manager
     of those Funds within 60 days or less. The securities reported herein are
     held directly by the Funds. Duquesne Capital and Mr. Druckenmiller may be
     deemed to beneficially own such securities by virtue of the foregoing
     relationships. Each of the Reporting Persons hereby disclaims beneficial
     ownership of the reported securities for purposes of Section 16 of the
     Securities Exchange Act of 1934, except to the extent of his or its
     pecuniary interest therein.

(2)  Each warrant is exercisable in whole or in part, at any time or from time
     to time, at the option of the holder into one (1) share of Common Stock, at
     an exercise price of $5.00, subject to adjustment.