A few weeks ago the screensaver started flickering, and when the PC was reactivated the monitor went blank. The monitor sometimes stay blank until the next time the screensaver would kick in. The blank screen is now happening at boot up stage. During boot up the process is shown in filcks on the dark screen. The blank boot up sometimes concludes when the start up process ends, or starts again at the end of boot up. I terminated the screensaver function and now have no images being displayed on monitor. The PC was tested with another monitor and same problem. The PC will play CDs automatically Any Help?