Claudio, you must be new here. :-p
If you stick around I believe you'll find the Ubuntu forums are a warm community of people who all want their computers to 'just work.'
I'm marking this as a duplicate of bug #27541. Be sure to mark yourself as affected on the top of that bug report:
"This bug affects 1 person. Does this bug affect you?"
Claudio, you must be new here. :-p
If you stick around I believe you'll find the Ubuntu forums are a warm community of people who all want their computers to 'just work.'
I'm marking this as a duplicate of bug #27541. Be sure to mark yourself as affected on the top of that bug report:
"This bug affects 1 person. Does this bug affect you?"