Seriously lalverson...its Windows98. It can't deal with Poser's memory issues very well. That 512k of ram may sound good, but Windows9x can't deal with it. It was designed when home PC's never had that much RAM, and its choking on its own design (Microsoft has articles about these issues if you want to look them up). I installed XP and now scenes that wouldn't render have no problems. If you don't whan to change your OS, you can get cacheman (search downloads.com) to tweak some Windows settings that will help...but it won't cure the base issue.