I bought a 27" Samsung LED Computer monitor to play my PlayStation 3 on. while playing the screen goes to black but the power light stays on so i turn it off and back on and the display is back. sometimes it will go to black every minute or two and other times I can play for a while. I have the monitor hooked up to my laptop as well. i just don't know what to do. I think it goes to sleep mode so i went to the settings so it dosnt do that but i don't know if that only works for my laptop or there is somewhere else i got to go to change the setting for the monitor itself.