I am unable to get a user into the -512 primary group SID. The user originally went into -513, though I don't know why. Now I cannot get it moved. I am able to add a different user to -512, so that part works. 1. pdbedit -r -G <SID>-512 -u <username> does not seem to change anything, at least not as reported by pdbedit -Lv. 2. I did a complete uninstall of all the samba and ntfs packages, deleted /etc/samba, /var/log/samba, and /usr/bin/tdbbackup, then reinstalled. 3. net goupmap list was then empty. 4. After a net groupmap add rid=512 ntgroup="Domain Admins" unixgroup=<unix group>, net groupmap list showed only the -512 group. 5. pdbedit getlocalsid returned the new SID 6. Entered pdbedit -a -U <SID>-500 -G <SID>-512 -u <user> 7. pdbedit -Lv shows the user in -513 still, even though I have not even recreated that group.... So, there is clearly a cache issue here, but I can't find the file that needs to get deleted. If anyone has some suggestions, I'd be appreciative.