In that case, I would comment out a large section of your code... then uncomment things like by line until you start getting the crash again. That's the best way to pinpoint the source of the problem, if you really have no idea where to look.
I'd also recommend sleep. If it's late at night and you've been working on the problem for hours, a good night's sleep can sometimes make all the difference. When you come back to it in the morning, refreshed and thinking keenly again, the problem won't seem so enormous.
66.6666666666% recurring of all annikk.exe breakthroughs occured within the first hour of the day's coding session. Trufax.