I installed Ubuntu 12.10 x64 on my desktop PC and now I have problems with my graphic card Radeon HD 5870.

I donwloaded the newest drive from the AMD site: http://support.amd.com/us/gpudownloa...2&lang=English

But I cannot install them because of the next error:

Supported adapter detected.
Check if system has the tools required for installation.
fglrx installation requires that the system have kernel headers. /lib/modules/3.5.0-17-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.
Could someone please help me with the issue I have faced?