I have a Samsung SyncMaster 997DF monitor and it has started doing something strange recently. it's kind of hard to describe, but every so often the PICTURE get's kind of WAVY on the screen as if something is interfering with the monitor. i'm not really sure what could be causing the problem. any ideas?I have had the same problem which was caused by a very small oscillating desk FAN six feet away from the monitor, look around for anything that may cause magnetic interference.Mobile phones will send a ripple through my monitor just before i'm rung, i also get a small pop through the speakers but its more likely to be a magnet. Your monitor should have a de-magnetise THING that will fix the problemyeah, that's what it seemed like to me to, but i'm not sure what could be causing it... i have a cell phone set about 2.5 ft away and a sub about 3.5 ft away. i don't think it's either of these, but if it's not, then what? all else that's near is a self-setting alarm clock, desktop speakers, and surge protector. i'm gonna turn off my sub/speakers for a while, move my cell phone, and see if it still happens... other than that, not sure what to do...well, the sub is off and the cell phone is nowhere near the monitor... but it still does it so neither of them can be interfering... what else could it be?i found the demagnetize OPTION through the monitor menu. I tried it a couple of times, but that didn't solve the problem either...I'm assuming you've checked everything within 20 feet of the monitor, how about the video cable connections?
Another thing could be the power supply, how long does the wavy stuff last for?the wavy distortion only lasts for a secondIs it possible to try a different monitor as a test?actually, at the moment, yes it is possible, i just happen to have a spare dell, i'll test it soon and post back up
ok, got another monitor hooked up and... it's still does it... what else could it be?Well done, at least we can take the monitor out of the problem.
Now to your mains power supply, the quickest easiest way I can think of checking it is to pack the whole computer up & plug it in at someone else's house, not next door to you.
Alternatively, borrow someone's complete computer & try it at your house.
I know this sounds like a headache but it's a process of elimination.wow, that sounds like a huge pain... um, i just recently moved (college student moving from dorm to dorm) and was wondering if it could be something related to the new room (distortion caused by wires in the wall or even something in the room next door)? the weird thing is that my new dorm has about the same dimensions and furniture so my new room is set up and layed out EXACTLY how it was in the old dorm, but this is a new problem i'm having....It could be something in the next room, can you try moving the monitor and see if things change?i bet your neighbors have a new toy that is causing the headache. May also be your room layout, are you on a differnet side then where you used to be on the building? Look out the window, any powerlines close by or repeater boxes?