Hey, thanks for replying.... My monitor is a an LG 42 inch HDTV, but I've had this similar problem with an Acer 22inch monitor and a couple others....I've checked all the settings, they seem to be normal, but when I want to turn the monitor back on in the morning, I get the no signal screen, right now I'm using a quick fix to get around it... I have my computer power down the display after being idle for 2 minutes, so when I move the mouse or keyboard, the no signal screen disappears and the computer comes back up. But if I go off the input to another one to watch tv or something, I can't go back on my computer until that 2 minutes is up. It's not that big of a problem as I said but it would be nice to just switch between tv and computer whenever. Thanks for the help!