Vue says wrong serial number...This happend to a user from Germany who wrote to me, too. But he shut down his computer and after it worked. I also must say that Vue 4 is sometimes capricious (with me) when I try to import a pz3 and Poser is almost open behind. Vue says "cannot read*.pz3". If I close Poser AND Vue, then recall Vue alone, it works. Maybe you could try that. Guitta