Ooh...shiny...anti-theft mode!
You can set a pin and timer via the HP Display Manager software. If the monitor is unplugged from both the computer AND the mains, and then plugged in to a different computer it'll allow the timer to run down then you'll get a great big theft alert displayed on the screen. You can tell this monitor is aimed at businesses.
edit: Posted this on another forum, thought it may be helpful here:
Here's a quick scaler test with 1:1 mode on:
1920x1080 - ok
1680x1050 - ok
1600x1200 - ok
1600x1024 - horizontal ok, vertical stretched
1600x1000 - ok
1600x900 - horizontal ok, vertical stretched
1440x900 - both streched, AR ok
1360x768 - both stretched, AR looks slightly stretched vertically
1280x1024 - ok
1280x960 - ok
1280x800 - horizontal ok, vertical stretched
1280x769 - horizontal ok, vertical streched
1280x720 - ok
1152x864 - both stretched, AR ok
1024x768 - ok
960x600 - both stretched, AR stretched vertically
800x600 - ok
So, to sum up, the main standard resolutions, plus the 2 HD resolutions, are handled perfectly in 1:1 mapping mode. Some of the more esoteric aren't. That's pretty acceptable as far as I'm concerned.