Yeah, I mean, if you're ok with playing without Anti-Aliasing then sure, you can turn it off. For me, the game is sooo cool that I didn't want to lose any visual effects. Also, I always only play one game at the time so rolling back to older drivers was not a problem. (However, I agree that going back and forth with drivers is not recommended, but come on, for King's Bounty? I'll take my chances
)
I hope we get a patch soon!