i've used xp before with this monitor and it worked fine.

the closest related lock thingy from the manual is OSD Lock/Unlock. it says 'Push and hold in
the menu button for 10 secs or more to Lock the OSD'.... &
''Push and hold in the menu button for 10 secs or more to Unlock the OSD'... i tried that, no effect?



So you see a lot of white writing first?
black screen.


oh no, i don't have the security software installed.

I installed the XP driver, but the 'control lock' box is still there.