So try the usual and set it to 800x600 60Hz for a test. Be sure to try other displays. Who's to say this display or your VGA port has packed it in or not?
Hello, I have an HP laptop which I have had hooked up to a dell flat panel as an external monitor. It has been working just fine for a couple of years. Then one day, I start getting the following message on the dell monitor: "1. Analog Input Cannot Display This Video Mode." I have tried a million different things after searching for things on Google. Does anyone have some ideas? Thanks.