<i>Many system administrators are stubborn out of nature.</i><p>Yes, <i>especially</i> at my university it would seem. No one is able to log into 10% of the lab computers since these computers display a "you are not authorized" message. I tried reporting this to the administrator <i>twice</i> and each time he said that I couldn't have been a real student, and I must have snuck into the lab some how. He refuses to deal with the real problem.