When you select a session in the Frysk Session Manager and then edit the session name (e.g. to correct a mistake when creating it), and 'Close' the window, the Frysk Session Manager correctly displays that the session name was changed. Quitting frysk and re-entering however shows that the session suddenly exists under both the old name and the new name. This is reproducible 100% of the time.
Problem is that sessions are stored under their names, so when you change the name of the session using the edit functionality of the druid, and close the druid, it triggers a save of the current session, which causes it to get saved under the new name. The session manager acts as if the session was renamed, but in reality (in the underlying fs representation of sessions) a new one got created. So, when you start frysk again, it now finds both. When you chamge the name, the session under the new name ought to be automatically deleted at the time of saving the session under its new name. You can't really do it prior to the save of the new session information, because a crash or deliberate abort of frysk would leave you without even the old version of the session.
Fixed in cvs-HEAD