I performed a clean installation of Ubuntu 11.04 and it had some strange issues. The most annoying being that it wouldn't shutdown it would show the shutdown process and then the dots in the Ubuntu logo would bleed through and then it would halt but it would immediately turn off after pushing the power button it didn't need to be held. What was strange is that it would restart no problem. After being unable to resolve the issues I had I decided to go with Ubuntu Studio because it suited me better anyways. This installation ran a lot smoother and enabled me to actually install programs from the software center and I'm happy with it but once again it halts and won't shut down but it makes it to the last screen. It will also perform a restart of the system just fine. Any help with this issue would be appreciated.