It seems like it's not actually CUPS problem but just KDE 3.5.4, which is not able to communicate with CUPS 1.2.2
This is my humble opinion :) But how to trace the reason of this bug - I don't unfortunately know... If somebody does - please let me know. Perhaps I can so help to resolve this bug... -- Printing broken by Updates of 2006 Aug 1 https://launchpad.net/bugs/55205 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs