samba - Mar 2010 - Windows clients forget the name of a Samba network drive (e.g. "Network Drive P:")

Every so often Windows XP clients seem to forget the name of the network
drives on a Samba server.

For example, in Windows Explorer instead of seeing "Projects P:",
users are
presented with "Network Drive P:".


Does anyone know if this is anything to do with Samba or just a strange
Windows quirk?
Samba seems to be operating without any issues and there isn't anything
untoward in the logs that would suggest a problem.


Note: This wouldn't be a problem except for the fact it seems to cause
issues with Retrospect's automated backup routine.


Regards,


David Harrison