The computer I am using has a history of power issues. I've narrowed the problem down to the graphics card. Not sure what to do.. I don't want to get a new graphics card or pay to get the current one fixed.. Again: I turn on the pc, it beeps once then starts but the screen has flickering lines across the screen and picture seems shifted to the right.. Then randomly in the process of turning on the monitor will lose connection to the pc. But the pc seems to be working, no unexpected sounds or additional beep codes.. Is it possible to fix.. Or am I out of luck..