Hi, i'm getting this really, really weird graphical glitch after i installed my new GPU, an R9 270.
This happens randomly after the startup of the PC. Sometimes 2 hours after the startup, sometimes 5 minutes after, sometimes never.
It can happen when using any application, even just when i'm on the Desktop, and i have to restart the PC to fix it.
Basically, everything gets "offsetted" as you can see in the image below.
CPU: AMD FX 8150 Black Edition
GPU: AMD R9 270 2GB GDDR5
Screen: LG FLATRON W2243S
RAM: Kingston 2x 4GB DDR3
MOBO: Asus M5A78LM \ USB3
Looks like it could be a bad HDMI cable.