Just recently I started experiencing video problems with my EL 1300G. Black areas occur in patches on-screen and are impossible to tune out with brightness and contrast adjustments. This makes it very difficult to watch a video or movie. I have eliminated the monitor as the culprit by connecting it to a known good computer. Also there is an intermittent problem with blurred and indistinct small white lettering underneath the icons on the desktop. Any clues? How do I eliminate or confirm that the onboard graphics are the problem?