The heat idea is still a possibility though I'm not sure you'd be able to run Bryce renders without a similar effect after a while. Is there any difference between running Poser on a cold, freshly booted state and running it when the machine is already well warmed up? Presumably, it would run a bit longer when starting cold. I don't remember if you are running XP or 98. It would be much more likely to have an application crash the entire OS under 98. I assume that it is entirely dead i.e. you can't alt-tab to another running application. You said it has nothing to do with rendering. Do you mean that even if you work in Poser and don't render it crashes? Did you try running with absolutely everything else off. I know there are references for turning off extraneous services in XP, and of course, no AV, no network, no firewall, etc. Grasping at straws, is your setup directory structure identical, you don't have Poser files referencing stuff that doesn't exist on your new setup (though that shouldn't cause a crash)? Do you have copy of Poser installed in another location - really grasping :-) Did you run the 4.03 update for Poser 4? I can't imagine why something like a bad AGP slot or a faulty motherboard would only act up under Poser. I'd have to guess heat or more likely memory. You could try running a memory defragger. I use FastDefrag and CL used to recommend another one on their site. That way you could monitor the memory usage and see if something (perhaps Poser) is just eating all your memory and try recovering before it drops too low. Again I'm not sure that would cause the crash without any error message except the monitor input. It's frustrating that you can't get a response from CL--I think calling them is going to be the only solution there. Frankly though, I'm really not sure they could suggest anything that hasn't been said here before. Poser 4 is an old application and it normally should just about run on a Etch-A-Sketch in good working order so this is a real puzzler.

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