installed this yesterday in cpu and vista x64 home premieum didnt detect it.. the odd thing was i put install cd in and it gave me this error message no xfx product found go online for the latest driver.. that didnt work i downloaded the latest driver for vista x64 and when it oipened it said it wouldnt run because that card wasn't found...i checked my device manager and it showed no display adapter like before when my radeon graphics card was in.. i had my monitor plugged in to it i had a pic albeit not crystal clear but yet windows didnt detect it.. i also went into the bios to make sure that pci express was checked.. i know it was installed properly wondering what the deal is... would really like to get a better graphics card in with cuda aceleration...