Comment 26 for bug 175909

my story:
1)everything was working fine on Feisty
2)upgraded to Gutsy (had to finish it from the shell). System Settings and everything was working alright.
3)upgraded KDE from 3.5.8 to 3.5.9 then everything requiring administrator mode stopped working. I wasnt even getting the prompt for my password. Sudo kcontrol was functional though.
4)after reading this threat checked out my /etc/hosts file and the local hostname address was set to
127.0.1.0, which is a wrong loopback address. I edited it to 127.0.0.1 and everything went back to normal.

-- excerpt of my /etc/hosts --------------
127.0.0.1 localhost
127.0.0.1 heuboxub
#heu...was 127.0.1.0 for heuboxub
127.0.0.1 www.adbrite.com
127.0.0.1 creative.clicksor.com
-------------------------------------------------

Maybe the whole problem was caused by a mistyped loopback address in some install script??