New groups/users dont appear when setting folder permissions

[sidewinder]

Ive been tidying up our server today as it was a bit of a mess and permissions were a bit mucked up (as admin I couldnt access anything)

 

So ive created some new groups and users in workgroup manager, and when I go to set their permissions on folders, they dont show up in the list at all.

 

Ive waited half hour or so and they still dont show up. When its happened before I have rebooted the server and they have appeared but its obviously not an ideal thing to have to do during the day when people are accessing it

 

Oh im using the GUI, Im not confident enough with doing it via command line yet :oops:

 

Its OSX Panther if that helps as well