Missing option in kdialog?

Hi, I came across the need to use kdialog, specifically the 'combobox' option. When I key in: kdialog --combobox I receive the following error: kdialog: Unknown option '--combobox'. kdialog: Use --help to get a list of available command line options. I'm running SuSE 9.0 with latest YOU updates. I understand 'kdialog' is part of kdebase, which lends me to believe that I may have an bad install? Or possibly missing a library or two? Any assist is greatly appreciated. Thank you /Carl