So I'm programming along, and all of a sudden, some of my data structures are getting corrupted. So I run it step by step in the debugger to find where things are going awry. I finally tracked it down to a call to SDL_PollEvent().
????
It doesn't scramble it, or crash the program, just writes the same corrupt data in each time. Any possible ideas of what this might be? I can't possibly be getting overlaping memory sections between restarts and everything eles, can I?

I'd post source code, but I don't know where to start. The functions are completely unrelated. I'm even still using the example SDL event handling and initialization code.