Panel Icon not accessible

I’m running openSUSE 11 with KDE 4.1 and I’m seeing a strange problem with the icons on my panel. If I click on them nothing happens. I can’t access the application launcher or any of the other icons that I have there such as Firefox and Dolphin.

It seems the only way to fix it is to add another widget to the panel and then for some reason it fixes the other ones.

Anyone else seeing this?