Well, before I posted 1 about my comp shutting down, how it shuts down but flashes blue for a sec and reboots. I fixed tht, reformatted my comp. now i got another problem. i use a dell inspiron 6400. when i go start menu and click shutdown, turn off, it doesnt work. i waited for half an hour, everything was still running fine, internet and stuff. but when i hit alt+f4 on the desktop and click or press 'u' it shutsdown normally.