The error message was about compability, I was able to choose the recommended settings or choose to look for other problems. (i’m dutch so I try to translate it) and I was able to choose from vista service pack, xp service pack etc. and I the computer automatically chose xp service pack 2 and I started the vegas installer and it said: “you need at least windows 7, vista pack 3 or xp pack 3 to run this program” so I did it with xp pack 3 and installed it and now I’m still unable to open it. I can open vegas 9 but I dont even get the loading screen from 10.