Could this be due to my power supply? My screen randomly turns blue(I just reformatted, and it still does it), and then pc shuts down, and I need to turn it off and then restart it before it turns on by itself. I'm thinking it's due to my power supply perhaps? Is there a temporary fix I may do, maybe with the BIOS settings or something? I can turn off my DVD player(well dvddisc or whatever it's called), but I don't know how, maybe that will help?