Actually, this usually indicates a memory-related issue. It's reporting the issue multiple times because it occurs multiple times as it tries to continue rendering the scene. I would suggest posting your render setting details here, and watching the Task Manager next time you try to render the scene. Since you're on a 32 bit version of Windows, TG2 won't be able to use more than 2GB of memory. If it gets too close to, much less above that, you'll get errors like this, or even a crash. Running a 64 bit version of Windows can help even though TG2 is not yet a 64 bit app.
- Oshyan