xxxalpinexxx80

i got a message with the folding@home software and i cant download it,

i go to this website

http://folding.stanford.edu/download.html

then download this

Windows XP/Vista
GPU client GUI version
5.91 beta5

- and it says at present only radeon x16xx,18xx,19xx and ati fire stream 2u grraphics you may wish to consider running are standard client, which you can download at folding.stanford.edu.
5.91 beta5

i tried all the others and none work?

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evga 680i a1
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ocz 700watt game stream psu
Vista Home Premium 64-bit