Do you have the complete collection pack, with the automatic 1.41 patch? If so my bro. had the same sort of problem... if i'm correct, he was able to override it by not installing the patch included in the installation... instead he patched it by downloading the patch else where and manually installing the patch (I think he got his from Xfire or filefront?). This might fix the patch problem. I might be able to get more info later from my bro. if that doesn't work. As far as accually installing the game, I recall having a similar problem... I don't remember how I fixed that sorry. If you have a lot of security on your PC (firewalls, AV, etc...) that often give you trouble when installing things, you might want to try opening the task manager after you click okay/continue on the installation and make sure you have none of those security programs blocking the installation and just not showing up on your screen as: Security risk, do you wish to continue?