I really like Vista..and had very few problems running Poser on it....until I started doing animations. For some reason no matter what I did I would always get a "out of memory" error when trying to render animations...even when I dropped almost all the settings. I mean I have a 3g RAM dual core system with 500G hard drive...gforce 8800

meanwhile on my old XP system which only has a 1.3Ghz processor, 1g RAM and 250g hard drive and a radeon x700...it could render my animations just fine. 

So unfortunatly I have reverted back to XP for now. I'll wait until Vista releases a Service Pack then try again.