I have the following spec computer:
MSI R9 390 GPU
MSI 970 Gaming Motherboard
16GB Kingston Fury
850w Power Supply
It is brand new, I have installed Windows 7 and Windows 8.1 with both the latest official and the beta drivers and the problem persists.
I get horizontal lines flickering across the screen when moving windows about, while typing into a web browser, and randomly (but not often) when I am doing nothing.
Interestingly enough it stops flickering if I have the flash player running, watching something like you tube, even when the browser is minimised.
It also stops when watching videos in the Kodi media center and playing games, although it occurs with video in games.
It is fine in Ubuntu.
Where do I go to file bug reports?