Oh dear... is all I will say >.< I mean sure it's somewhat of anecdotal evidence but dear god either you got terribly unlucky or do something wrong o.o I had numerous AMD cards, a x1600xt, a 4850, a 5770 and now a 6850 and I maybe had like four driver issues in all the years^^ The first one I can remember was CoD: MW2 stuttering on launch-day but on the next day there was already a driver-update that fixed it, another time they broke the "digital vibrancy" setting which was also fixed again but that's all I remember so far >.<

And it's not like nVidia is totally problem free, when I build a PC for a friend with a GTX 660 Crysis 3 would every now and then crash with a error like "DX_RENDER_DEVICE removed" or something like that, a error I never saw so far on my 6850 and likewise another friend of mine constantly complains about PhysX not updating properly whenever he does a driver update, I would say both companies have equally solid drivers and errors on both sides are more likely to be caused by programming flaws in individual applications and/or a user error^^;;

Oh and I also remember reading a article that nVidia's great great PhysX would run fine on AMD cards as it is sans three minor nVidia-specific instructions that could easily be fixed but nVidia willingly chose not to. AMD could have done the same with TressFX but instead they let non-AMD users enjoy it too which was a great move by them! :D And at the same time I wonder, is there actually anything that CUDA can do that OpenCL can't? (Especially since AMDs Direct Compute performance is higher than nVidia's...) I can somewhat understand why DirectX is preferred to OpenGL but why not use open-standards when it comes to something relatively minor like this? >.<

I know I might sound like a AMD fanboy but I'm not one, actually I always preferred nVidia in the past though the great money-value in AMD products made me switch when I built my first own PC and the only thing I'm against is blaming a company for something without having proof it's actually their fault as the problem can easily be somewhere else with highly dynamic things like PCs^^

Also before I forget it I also never had trouble with AMD/ATI and Linux with Ubuntu, Mint and Sabayon so I guess I just got lucky