Print button greyed out in Firefox OpenSUSE11.0

When selecting Files -> Print in Firefox on OpenSUSE 11.0, the Print button at the bottom-right of the print dialog is greyed out and not clickable when a printer is selected. I can still print to a file.

My printers work fine from other applications.

Firefox is version 3.0.3-1.1 from the official OpenSUSE repo.

Does anybody have any suggestions?

I had a similar problem with SUSE11 and KDE4. Had to install some of the Gnome print tools. Not sure why but that fixed it - did submit a bug report but with the new KDE4.1 coming out all interest is gone from fixing 4.04 problems