Hello, I've finally got Boot Camp working. Had to do a zero-write of my hard drive and a clean reinstall of OS X, but hey...! I've re-installed my old Steam games. For the most part, they're working as I'd expect. But CoD:MW seems oddly sluggish. With the graphical settings at 1080p with V-sync, no AA/AF, it's really rather chuggy. Doom 3 runs at 1600 x 1200 with 8x AA fine. Fallout: New Vegas runs at 1080p with 4x AA fine. Batman: Arkham Asylum, the same. Half-Life 2 and Portal 2, the same, with AF. Bioshock 2, equally. Even Crysis, which has the most horrendously demanding graphics engine I've ever seen runs at 1080p with V-sync more smoothly than this. Is MW known to be particularly demanding? Or should I keep looking for a problem? Cheers, DH.