Hey guys, just purchased a ATI 1GB 6770 , a 600W power supply and a 120mm fan. i came home and installed all the parts in my computer , im new to connecting the cables but i think i managed as the computer does turn on and goes into POST screen . The problem is that it wont boot into windows, it keeps trying to say 'boot from cd' but i just want it to boot from windows vista off my HD i thought it might be HD issues but it was working before i installed the parts. and the cords seem to be in the right place. Im stumped! . im new to this so any help will be greatly appreciated