I've occasionally had Poser freeze up everything after I've rendered QuickTime movies and tried to close them too quickly. I'm not a hard-core techie but it seemed like maybe Poser was trying to clear out the memory so it could activate it's display (make it's other windows active instead of the built-in QuickTime player) and my click forced it to try to react quicker than it could. I've learned to save before I do a render or hesitate for about a second after I stop replaying the rendered QuickTime in Poser. I've got Mac OS 9.1 and QuickTime 5 on my Poser machine (Poser 4.0.3 with Pro Pack).

Before they made me they broke the mold!
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