Does anyone know if a graphics card can go bad an send an intermittant signal? I upgraded my monitor this week and everything was fine for a couple of days. Then, as I was working, the monitor lost signal. This occurred, on an irregular basis, 2 or 3 times that day. Put that monitor on another system and reconnected by old monitor - no signal loss on either setup for over 24 hours. My graphics card is NVIDA GeForce 6150 LE. I have also changed the cable. I hate to send the monitor back if it's a bad graphics card but I also don't want to spend the money to replace the card if the problem is in the monitor. Any suggestions would be appreciated.