I'm trying to install Vista Ultimate on my computer. It installs normally untill it has to restart. It starts back up and starts to "finish the installation" (or something like that) but it freezes up after a few minutes and won't install further. If I restart at this point and try to boot from the hard disk (the one I just tried to install Vista on), it loads for ten seconds or so and then says that I need to restart the computer and reinstall Vista. If I boot from the Vista DVD and try to repair the installation, it says that it can't find any problems with it. I formatted the drive using another computer and tried again with the same results. I thought it might be a problem with my DVD drive because I recently got a new one, but I tried a different one and the same thing happened. I know my computer can handle Vista, so I doubt that's the problem. What's going on?