Missing OSD with KMix and alt-tab in Hardy

[Job Noorman]

When using the volume up/down/mute buttons, KMix changes the volume
but there is no OSD.
The same problem when using the alt-tab combination.
(OSD in Amarok is working)

Are those problems related (so is there a package I can file a bug
for?) or is it just a coincidence?
Please let me know if I can provide some more information.

Cheers,
Job