I bought an HP 8510w mobile workstation with the nvidia quadro fx 570m video and Vista Business. I could not get Catia to load. I would get Administration stopped working. I read misc. forums and it looked like it was a video problem. I rebotted and pressed F8 and booted in safe mode with network support because video drivers would not load. Started my Catia install and it worked. I believe it is a nvidea problem more than a Vista totally problem. Anyway I am up and running.