My S2340M monitor is behaving strangely. For about two minutes at a time, the screen scrolls or flickers vertically. It does this whether it's hooked up to a computer or not. I've tried swapping out the power cable, trying it on different computers, changing the refresh rate, and resetting it to the factory settings. I've moved it to a couple of different rooms, in case it was interference. But no change. I've uploaded a video of the problem (hopefully this works):
(Please visit the site to view this video)
S/N: CN0293M3641802AE02KT