Hallo. I have installed now Debian 7.5 Xfce 64bit in german language. Installation was perfect. The pc shutdown and restarted. Then I said to the pc "please shut down" if I pushed the button. I became a black screen and the pc didn't shutdown. The PC is new and the hard disk is also new. I cann't understand why the pc is hanging up. Perhaps somebody can help me. Thanks for all. Gérard.