I bought a Samsung Syncmaster SA300 and it worked perfectly for a couple months. One day when I turned my system on all I got was the "check DVI" message. The LED screen was functional, but no signal was showing on the screen.
I trying toggling between VGA and DVI, but this didn't work. I then tried going back to a VGA cable and again toggled between VGA and DVI. No dice.
I've tried DVI and VGA from multiple systems, to rule out a problem with my original graphics card. Same result everywhere.
I hate to chunk a monitor with a good LED screen. What component might have died inside the monitor to cause this to happen?