Same problem. Reinstalled Tiger due to spotlight issues and this has been the case ever since with motion.
Thread 3 Crashed:
0 com.apple.Foundation 0x9289de80 _NSRaiseError + 264
1 com.apple.Foundation 0x9289dbbc +[NSException raise:format:] + 40
2 com.apple.Foundation 0x92876cec -[NSObject(NSForwardInvocation) forward::] + 176
3 libobjc.A.dylib 0x909b20d0 _objc_msgForward + 176
4 Ozone 0x0145b1c8 OZCacheManager::Instance() + 168
5 Ozone 0x01259aac GLRenderer::render(OZScene*, OZRenderParams&) + 204
6 Ozone 0x01293570 OZRenderUnit::processRenderInstruction(OZRenderInstruction*) + 272
7 Ozone 0x012933d4 OZRenderUnit::execute() + 68
8 Ozone 0x012923b8 OZExecutionUnit::executeLoop() + 264
9 Ozone 0x01291cbc OZExecutionUnit::executeLoopWrapper(void*) + 44
10 com.apple.procore.framework 0x00080444 PCThread::startup(void*) + 36
11 libSystem.B.dylib 0x9002c3d4 _pthread_body + 96