Comment 8 for bug 134503

I can also confirm this issue on Gutsy. All options in the printer dialog were disabled. I was able to fix things by doing the following:

  # adduser cupsys shadow

  # adduser gporcel lpadmin

  # /etc/init.d/cups restart

I am wondering if this issue could be due to the fact that I use "non-standard" user ids, in other words, not those supplied by Ubuntu. For instance, my user and group ids begin at 6000.