I've just noticed the problem is restricted to KDE (I don't use Gnome). Here is a good example of this uglyness, take a look at this video at 0:29 http://www.youtube.com/watch?v=PBW5qE1eDmM I hope it will be fixed soon.
Regards, Laurent -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org