Samsung SyncMaster 225MS - Manual (Page 35)

Menu Description Play/Stop
Locked
After pushing the "MENU" button more than 5 seconds, OSD function is
locked (unlocked).
Even if you use the OSD adjustment lock function, you can still adjust
MagicBright™/Mode and Brightness and Contrast of the monitor.
MENU
AUTO/PIP
MagicBright™
Menu Description Play/Stop
PC/DVI : MagicBright™
MagicBright™ is a new feature providing the optimum viewing
environment depending on the contents of the image you are