LOL Mem, just because they dont have any problems doesnt mean that they're the best. The nVidia ones are much more recent, they get updated much more often, and usually they have the best performance. I believe the OEM drivers are suppose to work without problems, sure thing if you dont care about performance and stuff. Its just seems logical to use the reference drivers, 'cause every manufacturer is using reference design, who knows their product better than nVidia themselves?