Hi Rachel, sometimes some bugs can just be odd, especially if they involve use of uninitialized memory, one side effect of that particular kind of bug can be different results just on different runs depending on what just happened to be done prior to it... It's possible that you ran into some bug related that.

It wouldn't hurt for me to take a look at the file, maybe if I run it under the debugger I'll be able to see some trace of the bug.

If you want to keep the file private you can send it to me through e-mail at moi@moi3d.com.

Thanks, - Michael