Most of the orange box is not working for me. This is what I've got: 2.66 Ghz Dual-Core Intel w. a Radeon X1900, running boot camp 1.4. Same thing happens when I used the graphic driver that boot camp installed, and the graphics update that Steam suggested. (7.10) I've done a complete reinstall of boot camp and XP. ONLY thing I installed was the Orange Box software...not even any virus stuff.
Team Fortress 2: I can get into a game for a moment and move around, then crashes. (freezes up with the sound doing a weird looping thing.)
Portal: Get into a game, crashes.
HL2_ Episode Two: Crashes real fast
HL2 original: RUNS FINE, but I notice a few rendering errors. (polygones missing, weird lines shooting out of peoples faces)
This is what kills me: When I used boot camp v 1.1 a few months ago, Half Life 2 and Episode One played perfectly. Battlefield 2142, Counterstrike Source, Call of Duty 2 all played perfectly. Only recently I've had problems with playing newer games. (Bioshock demo crashed at the same spot, MOH Airborne demo does the same thing.)
It seems the newer drivers are screwing me up. Don't tell me I've got to *gasp* "upgrade" to Vista?