Funny, the one thing you didn't consider in all your post is that your PC is having an issue. But it's definitely a problem on your PC configuration whether you realize it or not. Sounds like two completely different scenarios, one while installing the other from movie playback. if the movie is on the DVD then I would look at your DVD drive, like latest mobo drivers for instance, etc. Hard crashes like that are spelling bigger issues. Also make sure you reinstall latest directx, just for fun.