assertion failure

hi
sorry to bother you guys but i have this problem was wondering if you could help me as you all are smarter then me
http://img216.imageshack.us/img216/2848/error15om.jpg

This doesn't look like at an Ice-related problem. If it is, we need more detail, such as a complete, self-contained example that demonstrates the problem.

Cheers,

Michi.