Power settings are Screen Saver wait 5 mins, monitor off after 20 mins, turn off hard disk after 2 hours, system on standby after 1 hour. But it won't do that. Computer Nerd worked on computer, set the settings (except the SS was 10 mins), and the first 24 hours all was in order. Then bingo, the monitor just sat there with my desktop pic. It went off once later in the week during the afternoon, but that was the last time. I have the feeling that if my computer fixer can't fix it, nobody can - but I thought I'd ask anyway. Question more easily answered: Is it ok to just turn off the monitor when I'm done for a period of a few hours or overnight? I don't want to turn off my computer because all my updates etc are scheduled for the wee small hours. My monitor is a SyncMaster 192N, Samsung, and only a couple of years old, if that. Thanks for any info you can give me.