Hi I have three Asus VP28U monitors on my PC as well a Sony TV. For some reason the monitors (all three of them) change the brightness of my browser window (just that window) as I scroll (I can actually find a part of a website where this happens!!!). If I drag the same window to the TV I don't have the same issue. I've never come across anything like this and it's getting unusable as it's so bright when it turns up I can't read the test and it always seems to do it on screens with lots of white. My monitors are plugged in with a mixture of HDMI and Display port and I've updated all the drivers. Any ideas would be appericated.