KDE CUPS broken

For some reason that I have not been able to fathom, printing in KDE via CUPS no longer works. It worked yesterday, but not today. Today I get the error message "There was an error loading kdeprint_cups. The diagnostic message was" and that's it. The cups daemon is up and running. KDE Control center also shows the same error message when bringing up the printer dialog. Does anyone have any clues where to begin? Thanks, -ronc -- 10:41am up 26 min, 1 user, load average: 0.00, 0.00, 0.00