I started my machine in Diagnostic mode. That cut off the firewall and virus protection, plus several other programs. The software still would not work. Most troubling, however, was the message that I had significantly changed my hardware and I had to try 3 times to get Microsoft to re-valadate my copy of Windows. If I lose the money I spent on Poser, that is one thing, but if I screw things up with Microsoft, my computer will stop working. I am not about to do any more. I want a program that will install nad work, or I want my money back. I guess there is a policy that I cannot return opened software from Amazon. They may give me my money back or not. I hope at least they will send me another copy. If they do, and I haven't found out what is wrong, I can perhaps sell this thing on eBay and get something back.