Can't start some KOffice apps

From the default T-Menu I can't start KWord or KPresenter. I can start other KOffice apps from the T-Menu. I can't start either from KRunner unless I use the %u parameter. I can start either with no parameters from Konsole. When I start KPresenter from KRunner with the same command as in the T-Menu, kpresenter %u, I receive a message box that says: Could not open Reason: the file does not exist. When close KPresenter I see the following message: The document '%u' has been modified. Do you want to save it? I can get both KWord and KPresenter to start from KRunner if I use the full path. /opt/trinity/bin is the first directory in my search path. I can get both to start from the T-Menu if I modify the menu to use full paths. I don't see anything in the desktop files that is different from the other KOffice apps. Can anybody else confirm this behavior? Anybody know where to troubleshoot? Thanks. Darrell