I have unplugged everything and reconnected it after about 10 minutes. What could be my problem?
More about :monitor displays blank screen box check signal cable err
September 24, 2012 10:10:09 PM
Try cleaning up the VGA port and the plug at the end of the VGA cable. This error means the monitor is not receiving valid inputs from your graphics hardware. If nothing else works, you might need a new VGA cable.