You might want to check a patch taken from upstream (not yet in a stable release) that fixes a similar problem:
http://cvs.fedoraproject.org/viewcvs/rpms/notification-daemon/F-9/notification-daemon-clipping.patch?rev=1.1&view=auto
At least it seems to fix a similar problem for us in PLD Linux.
You might want to check a patch taken from upstream (not yet in a stable release) that fixes a similar problem:
http:// cvs.fedoraproje ct.org/ viewcvs/ rpms/notificati on-daemon/ F-9/notificatio n-daemon- clipping. patch?rev= 1.1&view= auto
At least it seems to fix a similar problem for us in PLD Linux.