My Mac Intel 3.0, 8 way with 16GB ram rendered tga files yesterday along with an mov animation file and saved both types. Today I loaded a different scene and set it for mov animation save. After the first frame renders and tries to save the application quits. Did it 4 time in a row. Is there a compatibility issue with OS 10.4? I do recall getting a new update on Quicktime and loaded it yesterday.