I just recently installed (or rather, reinstalled, after some bouts with Ultimate Edition 3.5 and Linux Mint 13 KDE) Ubuntu Gnome Remix 12.10 64 bit on my AMD A8-3870K desktop with integrated AMD Radeon HD 6550D graphics. After the install--and even during it--I noticed some odd stuff happening around my window borders ("odd" because I'm unsure how to describe it)--I have updated my system three times and the problem is still there. I would switch to one of the proprietary drivers under Additional Drivers but I was having different issues (also graphics related) in UE 3.5, and the gurus on the UE forum said not to mess with the drivers Ubuntu recommends, but to download the driver from the AMD website. This I have done, but when I try to install it, I'm told some "tools" are missing and to check /usr/share/ati/fglrx-install.log, which says
Supported adapter detected. Check if system has the tools required for installation. fglrx installation requires that the system have kernel headers. /lib/modules/3.5.0-20-generic/build/include/linux/version.h cannot be found on this system. One or more tools required for installation cannot be found on the system. Install the required tools before installing the fglrx driver. Optionally, run the installer with --force option to install without the tools. Forcing install will disable AMD hardware acceleration and may make your system unstable. Not recommended.
I was wondering: what do I do? Anyway, thanks beforehand for any input.