Hi, I purchased my PG211 a few years ago and have come up with this problem...
When i switch my monitor on (all working) via the LED touch button it receives the signal and displays the screen on VGA or DVI.
This only works for a few seconds, after which my screen completely blacks out.
Weirdly, after it has blacked out, the touch menu and LED lighting still work and are bright.
Any ideas how to solve this problem??? Thanks