When I try to turn my (fairly new) PC on, it boots as far as the 'Republic of Gamers' screen and then gives up and goes black for a second, then boots again and repeats ad infinitum. This has happened twice before, but until now just restarting the computer using the button worked fine. Now it does this constantly. I think it has enough charge and I believe it will work fine when it turns on; what's the issue?