Do a complete uninstall and reinstall of the full CCC driver suite (minus the bloat and what you don't truly need, but leave CCC just in case).
Do this in safemode using Direct Driver Uninstaller (DDU). Get it here.
http://www.wagnardmobile.com/DDU/
I suspect that the driver version and file you see in Device Manager may just be the basic display driver, akin to the basic Microsoft Display Driver. There may be other driver components that are far out of date, and sometimes GPU drivers can just get jacked up over time with upgrades.
Try out DDU in safemode and follow the instructions. It'll help you get a perfectly clean slate for a fresh Radeon driver install, and I wonder if that might fix your problem.
To me, having to disable hardware acceleration isn't an answer, it's a stop-gap fix that removes a terrific feature.