"KLauncher could not be reached via D-Bus"

I am have openSUSE 11.0(x86_64). When i’m launch Kate from the desktop, the application is not shown some seconds on a task bar, and then i get message “KLauncher could not be reached via D-Bus. Error when calling start_service_by_desktop_path: empty”. However then the program works normally. Why it occurs and whether it is possible to avoid this error?

p.s. sorry for my bad english