My LG flatron(L222WS) widescreen monitor going to “power saving mode” with no reason and I can’t do anything. Black screen, the green led turns into orange with no reason. If I press alt+tab after few seconds its going back to windows and the screen turn on. There is no virus in my pc nor Trojans. I have radeon9200 video card and I reinstalled the whole system but even that could’nt fix my problem. please help me.