I have a Planar 20" PL2010M LCD monitor. I attached it to an Athlon 64 system running FC6 and using the nvidia proprietary driver (the latest available). I tried (foolishly) the 1920x1080 interlaced output. The monitor said it was outside the range. I reset to 1600x1200 noninterlaced and everything was fine. Later I connected a similar computer (running FC5) that was displaying 1920x1080i (same nvidia card - 5700LE or such). I noticed my mistake right away and I immediately disconnected the monitor. Now, the PL2010M won't display anything. The on light switches quickly from green to a constant yellow and displays "no input signal" on the screen regardless of whether I'm using the analog or digital input. I can no longer bring up the setup menu (e.g., to change from analog to digital) - no menu whatsoever. I called Planar and they said it wouldn't damage the display but it seems like too much of a coincidence. Rick B.