felinis

I had the same problem.

I solved mine after hours of work, three system restores and switching on and off dozens of codecs.

My problem turned out to be that two of my Monitor device drivers were disabled on the Device Driver panel. How this happened, I haven't a clue. The monitors worked fine.

I could never figure out why a screen or monitor needed a PnP driver in the first place - you already have the video chip/card driver and its GUI.