Battery warning suppressed by D2 under XP?

[alexti]

I've noticed that if Dom2 crashes once, after the restart switching between apps (through Alt-tab) isn't working properly anymore, meaning that the switching is working, but the screen is not redrawn, so Dom2 picture always stay on top unless I minimize Dom2 window (I play it in window mode). I suppose in those circumstances, your battery warning wouldn't get through the Dom2 screen either. eMail notification would probably fail as well, but you could have seen it working before the problematic situation occured (before the original crash).

I'm not sure what causes the problem. Presumably OS should clean up screen resources after crashed application, but apparently it doesn't (or maybe it's the problem in video driver).