Its a weird problem. It has been working fine for over a year and little bit more. Suddenly the monitor lost input signal, and went to sleep, while the computer is still running. The monitor hasnt gain signal even if i restarted. It keeps sleeping, because it doesnt have any input signal. Also when i leave it on it suddenly gets signal an has display for a few secs or min, then loses it again. What could be the problem? If it never had happen before. What should i do or any recommendations, Suggestions?