Dolphin partition names

[Roderick Johnstone]

Hi

Fedora 12, x86_64, kde 4.4.5.

I have some unmounted partitions which show up in the Places pane in 
Dolphin labelled with their volume label.

I changed the volume label, but Dolphin still shows them with the old label.

I tried logging out and in again but the partitions still show with the 
old volume labels.

Any suggestions as to how I get Dolphin to show these partitions with 
the new volume labels??

Thanks

Roderick