If I take a snapshot, it will not show up in the snapshots list box until I restart italc master application.
My system: openSUSE 11.3 with italc-2.0.0 from openSUSE-Repository: http://download.opensuse.org/repositories/home:/fschuett:/branches:/Education.
I installed on one computer (teacher) and watch a second computer (4 computers in the config file) with key authentication.
Keys are on the network, snapshot directory is in smb mounted network home ($APPDATA/.italc).
The png shows up in the snapshot directory immediately but it is not shown in italc master until restart of the application.