On 05/04/2009 01:31 PM, Kent Tenney wrote: > pam_nologin(gdm:auth): cannot determine username Try: <http://www.google.com/search?complete=0&hl=en&q=ubuntu+%2B"pam_nologin(gdm%3Aauth)%3A+cannot+determine+username"&btnG=Search> Seriously. Not being sarcastic, just advising what I'd do first to see possible issues/solutions.