Tell you what. Purchased a Parallels license, and i'm not very happy with the results. I've had multiple instances where Parallels absolutely slams WindowServer. It's been so bad that I have to force quit Parallels, then log out because Parallels rapes WindowServer so bad that I have artifacts on my screen. Anyone else have these symptoms? The only relevant thread I found was this one and the support team dismisses it. I think they've got to get their act together, because I'm not happy about this at all, definitely hasn't earned my $80 yet. I don't think the Parallels application cleans up after itself properly either. Before logging out, I just played around with my dock to see what was going on. WindowServer cranked up to 100% and I was dropping frames simply moving through my dock icons. Logged out and logged in, Parallels hasn't been run yet, same actions yield only a 50% usage.