Thanks for help, Iappreciate it..now there is further development - yesterday after rebooting many times, the display started again, but it gave me a message that the screen resolution is set at very low and asked if I need to reset it. I kept it the way it was and went on working.Today again the monitor is refusing to dislay anything and multiple restarts are not helping. I have tried the flashlight experiment suggested on other forums, but I can see absolutely nothing. Since the monitor worked fine after blanking out once, I suppose the screen isn't dead and it's a loose connection or driver..now what do I do next?