Clients can't get user list

[Chris Snyder]

I have my Linux Samba box set up as a PDC, using the Linux password database, and using the registry hack on the clients to disable password encryption.

I'm currently trying to configure my client boxes to use user-level authentication instead of share-level, but they give an error message saying that they can't obtain the user list.  Any ideas what's going on with this?  Everything else seems to be working great.