It seems that this is due to mouse gestures being enabled. I discovered that Konqueror gestures had been turned on by some update or other. By turning off mouse gestures, the problem goes away.
It does still happen with KDE 4.4 in Squeeze. Not had a chance to try 4.6 in Testing yet. Nick -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org