Progress Dialog stuck after crash

[Niko Sams]

>> Konqueror crashed while saving an image from a website, leaving an entry
>> in the Progress Dialog that I cannot remove, and subsequently causing the
>> Dialog to remain up after any other Konqueror/KFM event uses it. How can
>> I clear whatever is "stuck" without restarting KDE?
> 
> Usually pressing Cancel is enough to get rid of the progress dialog....
I do have the same problem, and pressing Cancel doesn't work.
(looks like i finally have to logout after one week)