"AutoAdjust" is a user-friendly function which helps you to configure your LCD monitor ideally. In most cases, it involves nothing more than the single push of a button. Sometimes it a little hidden in the OSD, too. And yet, some times it might become necessary to configure things manually due to frequencies from VGA cards that don't fully comply with the standard. If the picture still appears to be somewhat "shaky" after the "automatic adjustment", readjust it with "Clock/ Phase" until it looks perfect. Try to avoid pushing "AutoAdjust" again once the right settings have been found, or you might loose your custom settings again.