windows 7 has been installed and working fine for the last few days. it was being kinda slow so i decided to restart. well, it tells me theres like 15 things to manually shut down (including the clock like 7 times). i shut down, it restarts and freezes at the HP boot screen. nothing. cant use any of the options on that screen, nothing. is this windows 7 problem or virus? i havnt had any virus protection for the last few days, so its quite possible. anyone have a suggestion?