windows 7 is installed on a hp7700 machine...and works fine, but if i try RESTART it wont boot??? If i use shut down it goes down and stays off as it should, and if i power it on again it boots up and everything works. The only problem is when i try to restart...it goes down but somehow loses boot partition or something like that. It looks like he cant find boot disk, or mbr or...im guessing. And again if i shut it down, or power off and power on it boots fine. I've used XP and even ubuntu and they work fine. everything seems to be ok. Any ideas?