I have an R7 200 card in an AMD system. Recently, World of Tanks goes to black screen and I have to reboot. After the last such incident computer didn't want to recognize higher resolutions until I switched HDMI connections, which restored the hi-res modes, but now World of Tanks has a 2" black border around it when launched in full-screen mode, and nothing whatsoever changes it. I'm running Adrenalin 18.7.2?, installed after 18.5.? began showing this error. Tried every scaling mode, scaling on, off, changed to different resolutions, all to no avail. Worked fine this morning, what's up?