I've just got a new computer, and while it's fast as all get-out (the cloth simulation is nearly real-time -- woot!) I'm now having a mysterious Poser5 problem that didn't occur on my old PentiumII system. What'll happen is one of two things; either during a dynamics simulation (cloth or hair) the scene is suddenly thrown out of the cloth or hair "room" back into the main posing room and the application immediately locks up: Or, during any memory-intensive operation (dynamics, Firefly rendering, etc) the system occasionally just winks out completely.... screen goes black, and the next thing I know the computer is rebooting. Neither of these problems happens a lot, but they're very frustrating. Is anyone else with a similar system having problems like these? The specs of the new system: AMD AthlonXP 2100+ Windows 2000 Pro SOYO Dragon Ultra motherboard with VIA KT333 1GB PC2700 DDR memory Poser's on a dedicated 100 GB Western Digital HD 7200RPM with 8MB cache, no other applications open or running in background Nvidia GeForce4 4200Ti video card Thanks!