Thanks for the quick reply.
But, maybe important, this happens during the boot process: menu to select (i.e. check dvd) -> starting the booting process -> ready. and now the message comes, but boot goes on (live or HDD-install). So, when to do the "sudo"?
Sorry for maybe silly questions, but i was surprised that the same iso worked well, and now...
I googled, but new X3 processor should not be a problem.
The only thing in Google I found is really old, but maybe helpful for you:http://www.linuxquestions.org/questions ... ep-335214/