Donna,
On the machine that is serving AC, create a non-administrate/standard/limited user named acuser. Give it a decently complex password.
You go the AC folder, right click to get to the properties.
One of the Tabs should be Sharing. Go into the Sharing Tab, and if Everyone is in the list remove it. Select/Add the user acuser. Give acuser full control (permissions) on the directory.
Now go to each machine that connects to the ac server, and map that AC folder as a network drive. When it asks for you to login to that folder, make the user acuser, and click the check-box that says to reconnect at login.
If there is interest, I can go through this in more detail with screen shots.
BTW Donna, great to hear you are joining us in San Diego!
