CrossFire ATI HD 2600 PRO auf MSI K9A Platinum

Wie bekomme ich zwei ATI HD 2600 Pro Grafikkarten auf
MSI K9A Platinum zum Laufen.
Board Beschreibung: K9A Platinum
                    ATI CrossFire Xpress 3200
                    AMD 580X Chipset CrossFire
                    Dual PCI-E X16
                    CrossFire Ready

Grafikkarte:        HD 2600 Pro Sonic
                    ATI Catalyst Software Suite
                    CrossFire Support

System Information
------------------
Time of this report: 10/30/2007, 09:23:18
       Machine name: STEV34-PC
   Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_qfe.070227-2300)
           Language: German (Regional Setting: German)
System Manufacturer: MSI
       System Model: MS-7280
               BIOS: Default System BIOS
          Processor: AMD Athlon(tm) 64 X2 Dual Core
                     Processor 6000+,  MMX,
                     3DNow (2 CPUs), ~3.0GHz
             Memory: 2048MB RAM
          Page File: 461MB used, 3477MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
     DxDiag Version: 5.03.2600.2180 32bit Unicode

Habe neusten Treiber Catalyst v.7.10 Installiert.
Problem kann CrossFire nicht aktivieren!!!!

BITTE UM SCHNELLE HILE
Gruß Thomas