I just tried to install Ubuntu 13.04 alongside Windows 8 and the mouse and ethernet did not work during installation and continued not on to work when it was completed. The keyboard works fine but it seems like I have to connect it to a USB 3 port. The mouse doesn't respond anywhere. My motherboard is Gigabyte 970A-DS3.
Also,I tried to install Ubuntu 12.10 with the same results (I didn't finish the installation, I still have the 13.04 on my system).
Any suggestions? On windows 8 all USB ports work fine.