Can't Install Demigod

I just bought demigod at gamestop, and was very distressed to find that I cannot sucessfully install it on my computer. I go through the wizard, and it begins installing. There is no % progress notification at all, and it reaches a point where the status is "shortcut: Demigo~/Demigod", or something like that. At that point, the entire installation freezes and I must restart the computer. Thinking it may be a problem with the disk, I tried it on my dad's comp downstairs and it began downloading sucessfully, with a % progress notification and downloading at what I would consider normal speed. Is there something I must change on my computer to sucessfully install demigod? I assure you my specs can more than handle the game, that is not the issue.

Reply soon, thanks in advance!