Hi John
Thats interesting, over 4 customer systems here all set to 21 days I've got 2 with 7 folders 1 with 11 and the other with 15 folders. They all show 21 little calendars icons in the playback application but none have 21 folders in e:\Recordings.
Did you resolve your original problem? If not check the Windows firewall on the server permits port 3454.
Mark