My Dad's not the most technology savvy person out there so I doubt he did something to cause this problem. Out of the blue his computer would get to the login screen and then bsod when it tried to log you in. Here is the pic http://i.imgur.com/EaaiK.jpg of the bsod screen. From what I've read this is a graphics card issue. The graphics card is an nvidia 8400GS. I went into safe mode and tried to update the drivers and now I get a hanging black screen when trying to load windows normally and sometimes I bsod when trying to enter in safe mode or I get this screen http://i.imgur.com/hFQBf.jpg Is this something that can be fixed or do I need to get another graphics card? His computer is an hp pavilion elite m9040n with windows vista. My dad is also paranoid that someone hacked the computer and installed a virus, that can't be the case here can it? UPDATE: Now I went into the bios and changed to onboard video and now nothing is coming up on screen at all.