Okay, I'm totally stumped on this. It started few weeks ago, when every morning that I would turn on my computer my monitor would display a signal saying "frequency out of range" I would then manually turn off my pc and turn it on again until an image was displayed. I tried checking the resolution and everything was fine, refresh rate was fine and everything. I have an AMD 6670 and an HD1700 gateway monitor. I already tried updating my drivers and entered in safe mode. Now, the strange thing is, it ONLY happens on mornings. I keep my computer on most of the day, but I've turned it off and on during the day to see if I still received the same message and it works just fine. This doesn't happen when I play games or anything only every morning on startup and I have to reboot until I see an image on my screen after about three tries and then it works fine even if I reboot it. I'm using Windows 7 Professional.