How fast is the ZIII RAM compared with motherboard RAM? I'm guessing it's slower and the 16MB isn't enough to hold your OS boot and your 3D rendering program, hence the program code get's shoved into ZIII and it's doomed to run slower. Perhaps your OS needs streamlining a bit? Just a thought that's all, as those figures seem a bit extreme - the 040 should be rendering quicker than the 030. Didn't people buy A4000/040's for quicker rendering times?
