I just installed Vegas 7e on an XP Duocore Dell. The very first project I'm working on is a 30 minute photo montage using VASST Ultimate 3 and the fit-to-music feature. When I try to render it using the default Vegas preset, it stalls at exactly 50%. The CPU drops to 0%, and nothing further happens. Is there something special I need to do for a duocore, or is this some known problem?