[Samba] Delayed Write failures with Windows XP

[Hall, Ken (ECSS)]

We have Windows XP users who have their desktop folders on a Samba share.  It appears that all or most of them are getting "delayed write failure" errors on "cookies/index.dat".  Nothing shows in the
log, and the error is consistent, even when we delete the file from the server.

This is Samba 2.2.7 on SuSE Linux SLES7 on S/390.

I've had it suggested that this is permission-related, and that giving admin permission to the users would solve it, but this is unacceptable for security and quota reasons.

Does anyone have any ideas on how I can either fix it, or at least figure out what's going on?  Thanks.