C++ Debug Error

Okay I just finished a program, pretty much a trillian knockoff, and it ran fine for awhile then I added a merged contact list. Now when I run it, it comes up with an error. I check the debug file and I get a long list of hexadecimal numbers. With three question marks aside of them. It makes me think of an IRQ fault but I wanna know what you guys think.

I would recomend running it in debug mode and single stepping through the code. That should indicate where the problem is. There is not enough detail above for me to offer depper advice.

Cheers,
-D