Clock goes zombie when clicked

[Sebastian Spiess]

hi all,

since a week or so I have problems with the clock in my top panel.

All works fine except for the clock... I can click stuff, use the applications menu etc BUT when I click onto the clock 
nothing happens. In the background a 'sh' process becomes a zombie and the panel in frozen (menu, clock).

I have no idea what I did wrong to cause that behaviour. I imported some settings, calendars and mail into Evolution but 
that's it.

Has anyone some help?

Thanks, seb