Well I guess I should've posted my whole story then. I'm not trying to tarnish anything, and I've got the ATI HD4850, which runs beautifully and I love it. However, during installation of Win7, I was stuck at the final setup page, continuously, after using three different versions.
System:
Phenom x4 9750
4GB A-Data DDR2-800
WD 10K raptor 32gb
Seagate 1TB
ATI Radeon HD4850 Gainward Ed.
Thermaltake 400W
Do you know what the problem was? The drivers included in the Win7 setup were causing BSOD with my HD4850. I eventually stuck in my friends GeForce (an older card, PCI-E nonetheless) and the final setup ran smoothly and I could get into Windows. I then switched my card back in, ran in safe mode, and updated the drivers.
So please tell me this is not an issue.