I'm trying out the live CD version of Ubuntu 12.04.3 LTS 64 bit and I noticed that the sound doesn't work. I have the HDMI cable plugged into the back of the monitor going to my ATI HD radeon 6000 series card (the monitor has built in speakers). When I open the sound menu, HDMI isn't listed as an option, just built in audio. I went to AMD's website and tried to download the file called 'amd-catalyst-13.11-beta6-linux-x86.x86_64.run'. It looks like a script file. It tried to open/install it with the program gedit, but it is really slow. Am I doing everything correct, or do I need to copy/paste the script file somewhere else? I hope downloading this driver works. The sound works fine when I boot back into Win 7 64 bit.