Im a new comer to Linux. I installed PureOS on my desktop with a TV as monitor, when PureOS runs it puts my screen reselution at 480 x 640 and says unknown monitor, with no reselution options. Now the windows ARE HUGE! hard to navigate and run. Some times I cant get the Go, Run etc. button at the bottom of the window. I noticed at start up it says has problem with Radeon graphics (AMD) found the Linux driver (amd-catalyst-13.9-linux-x86.x86_64.run) but wont install HOW DO I FIX?