Yesterday I had some really weird crashes quite out of the ordinary. After doing some looking into my settings i noticed somehow all my bottles got switched to windows 7 instead of xp. So if any of you have similar issues with wine/crossover, make sure you check your bottle versions. I have no clue how or why they changed, maybe an update triggered it. But either way apparently it's possible. I assume it wouldn't happen if using pure wine, probably some crossover bug.