Actually for Shift it IS supported, and I still think you are mistakenly over simplifying this.
I was referring to RE5, which you stated your card was not supported but was faster than a supported card. I thought my specific referrence to your comment would make that obvious.
As for over-simplifying things, I thought that was what I was arguing against... "this game doesn't work with ATI cards" is a simplification, when since it works with a lot of ATI cards, the same models people have trouble with, it is obviously something more complicated, such as "ATI cards running on certain drivers with certain other drivers on the same PC" or something similar.
My point was to say we should NOT simplify the issue, rather than the opposite.
For instance, someone on nvn recently talked about Thief 3 and it not running on Win7. "Well, this game just does not work because of Win7... Direct2Drive shouldn't be selling it" he said. When I and someoen else pointed out Thief 3 does work on our Win7 computers, 64bit the same as his, he was like "oh... everyone said it just doesn't work on Win7." He didn't even try compatability or admin modes or anything, the game crashed, he read on some forum the game doesn't run on Win7, and he started complaining.
That is the kind of simplified generalization on help topics I try to avoid.
When a problem is known, it happens for all users. Sacrifice has severe issues on 64bit systems... we know it is 64bit because everyone with a 64bit OS has the same issue. Metal Gear Solid 2 doesn't work with modern Windows because of sound driver issues, we know this because to play the game on a modern OS you need to disable your sound care.
Same issues for everyone with the same hardware/OS... that is how you prove the issue is rooted in a firm problem.