I made a partition on my desktop pc, 100 GB and installed Ubuntu 12.10 on it. It was pretty slow first thought it had to install updates or something, so I rebooted it. Now after the login it looks like everything freezes, I can move my mouse only, but that's it! I can see my desktop and launcher, but the task bar doesn't display time and misc system info, only a black bar, I downloaded the Android SDK pack and installed vlc media player before I rebooted.
My computer info:
1 TB HDD
8 GB ddr3 RAM
ATI Radeon 4890 videocard (1 GB)
AMD Phenom 2 x4 black 3, 2ghz CPU (64 bits)