I've had this card since last June with no problems and decided to update the driver this evening. The updated driver made my screen twitch from side to side every few seconds on the desktop and while browsing the internet. I had the issue when upgrading to Catalyst 10.12. I also uninstalled 10.12 and installed 10.8. I had the twitching problem with 10.8 as well. I'm currently running on 10.4 with no problems, which was the most current driver when I purchased the card.
Is anyone else experiencing this? Any ideas to solve it other than simply leaving it on 10.4?