Vista 64 does not suck at all. It may have issues with crossfire and/or SLI, who knows, but that wouldn't constitute it to "suck". I, for one, think Vista 64 is extremely stable and bug free. If this is indeed and OS issue that I am having, it will be the first real problem that I've ever had running Vista 64. To me, it's more of ATI's drivers (and crossfire) sucking. That is, though, just my opinion.