Carsten: Thanks for the tip about kdBacktrace() . On Friday 28 December 2001 04:05 pm, Lubos Lunak wrote: > I think that's caused by calls to updateAccel() in > QPopupMenu::menuStateChanged() and QPopupMenu::menuContentsChanged(). I > already sent a patch to TT that reduce the number of calls to it, but I > don't see the change in current Qt rsync yet. Thanks Lubos. That's was my conclusion too so far. I patched my local copy to get rid of all the Key_Unknown insertions (which were almost half of the total). Do you remember what your patch fixes?