Hello. I installed windows xp on my computer to see if this could fix the running problems with windows7. Well I just installed the XP OS and then I installed the demo. But I cant even start the game. I get an error message saying there was an error in the registry and I have to restart the configuration, after I click OK, the configuration setup window comes but with nothing but the Low, Mid, High, Play, Save and Exit buttons, if I click on any of those I will get an error message saying the application stopped working and I have to choose whether I send or not the error info to microsoft. I thought installing windows XP would fix it all but now I see it didnt fix anything.