I'll concur with ziggie. I have both Poser PPP and Poser 5 on XP Pro and they run without incident. So, I'd look to something other than the OS for the problem. Could be bad memory, Power application, a bad Poser install, corrupt Poser data files. You'll have to backtrack and see if other applications, when pushed, show signs of stuttering or freezing. Make sure that your power supply is rated for the new mobo/cpu. 350W or better in most cases these days (400/450W should handle most situations). If you haven't, get and install SP1 for XP. Right now, Outlook 2002 occasionally freezes XP Pro for me. Nothing to do with the OS or hardware; most likely one of the (unremovable) patches. Might I also suggest another form of archival media. DVD-R is far superior in storage capacity at greater than 6x's a CD-R's, or you can invest in a large-capacity tape backup device and media. 50GB is just too much for CD-R - what's that, like, 70+ CDs? (Yikes!) Kuroyume

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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