Skuzzy I noticed Vista still reports I have a 7950 installed instead of the 8800. I dont know if that makes a difference but do you make anything of this?
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Display Devices
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        Card name: NVIDIA GeForce 7950 GT
     Manufacturer: NVIDIA
        Chip type: GeForce 8800 GT
         DAC type: Integrated RAMDAC
       Device Key: Enum\PCI\VEN_10DE&DEV_0611&SUBSYS_C8013842&REV_A2
   Display Memory: 2544 MB
 Dedicated Memory: 497 MB
    Shared Memory: 2046 MB