ok so i just put my computer back together after taking it all out to put new mb in. didn;t like the mb so i put everything back. so i pressed the button and it turns on. then windows would load and automatically reboot. why? i keep trying, reboots. i bought the computer and it came with a recovery os disk. i used it, and then its finished, it restarts automatically which it should but then when windows load, it reboots, WHY?