Ok, I've finally had it. I haven't been able to run P5 since I got the upgrade. I thought to myself, fine - I'm not the only one, I'll wait for the patch. I installed the patch, still no dice. I disable my firewall, anti-virus, diconnect USB devices and try again - BSOD. After my second request, CL responds and begins trying to fix the problem. Tonight, they throw up their hands and say it's my fault for having a P3-450. I'm sorry but a processor that's only 50MHz below their spec (everything else is as their stated minimums require if not better) is hardly a reason to tell a paying customer (since V3) that "Your machine sucks, you're on your own." (okay I'm paraphrasing, but you know what? I'm REALLY P***ed off.) I have NEVER had a company pull this kind of crap with one of their products. It's obvious to anyone that the resource usage of this program is sub-standard (as evidenced by the fact I can run 4 other 3D applications with no problems whatsoever. This program should at LEAST run!!! No if's and's or freakin but's - IT SHOULD RUN. That's what we're paying for. Think twice about this program - there are many people that have no problems (wish I were one of you), but there are just as many that have had problem after problem. I wish you the best of luck. Cheers, Bonzai Gopher p.s. If you made it this far, sorry for the rant but I figure it might save someone the trouble I've had with this program.