Wow, didn't realize that. At any rate, I'd probably still use modified 163.75 since they are WHQL certified. The newer ones seem to have a lower success rate.
I have Bioshock and Assassin's Creed on my XP pro sp2 32bit, I run that on a BootCamp. For a couple of days I've run both games on close to maxed-out settings, and it went just fine, but then today Assassin's Creed, and ONLY Assassin's Creed, not Bioshock, began to lightly stutter, no matter how low I set the graphics. So I thought I would download a driver, downloaded that one there and POOF, there goes the whole performance. Instead of 60Hz refresh rate I can't use other than 50Hz now, and the games look ugly and run reallllly slowly and that really sucks. I rolled back the driver and it's still very bad. Bioshock is also very very ugly now. Did that **** blow up my 8600M GT or what?
Please, please, someone help me get those games on max settings again, just like BEFORE I DECIDED TO DOWNLOAD MAGIC DRIVERS.