Its a spit 9 bug, I've been running AH2 offline and the spit 9 kicks me back to desktop too, also, the Temp and Typh Boost guage needle isn't centered, Also the right hand machine gun on the B17 doesn't show fire at the end of the barrel.
Win xp home
1.0gig processor
256 meg memory
dix 9.0
Gforce 256 meg vid card