An old thread on my monitor

After that my monitor seemed to be fine for awhile. But now a similar problem has come up. Today my monitor was fine, but I turned it on tonight and something strange happened. Halfway through booting up, my monitor seemed to shut down, and all the lights on it started flickering (for contrast, brightness etc) and when it booted up the monitor was once again making the low humming noise it made in that thread. I've rebooted 4 times now, and exactly the same thing happens (though once the lights didnt flicker). The settings seem to be less then optimal, as the screen is flickering yet again. Also there seems to be a pause from the computer while the screen goes blank while the lights flicker. Help!