Have you checked the cable that is hooked to the back of the monitor?
Are you using it t for actual work or for Video when it shuts off?
Wel it happens during random tasks. Like when I play games, but not even a really graphics intensive game like Warcraft II, or say the last time it happened I was reading a pdf file?
The cable I'm using is a DVI cable that came with the monitor. I've disconnected and reconnected it a few times hoping to fix the problem.
LOL! I'm even waiting for a reply from samsung support. Oh and I forgot to mention the display is only 2 months old....?