I had a render error during one of my long renders. It occurred sometime about 24 hours into the image. The top row of the image had finished the final pass. The error was "Unknown Render Error in Thread".
So here's the tgd file and the system info. This is a new one for me. Sometimes I get get the "Error in Population Count" message.
Date=21 Nov 2009, 08:28
[Utility] (Creative Diagnostic)
Version=1.10.08
[System]
CPU=Intel(R) Pentium(R) 4 CPU 3.00GHz (~3012MHz 2 CPU)
BiosDate=01/08/07
Memory=3325 MB
OS=Windows Vista Home Premium Service Pack 2 (6.0.6002)
Language=English
DirectX=10.0