For some yet unknown reason today (or in the last few days) Personal File Sharing will not start up. In the sharing preference panel is says that it is starting up, but never completes the process. In a related problem the Powermac MDD can no longer see my Powerbook, that does have file sharing enabled. I have done some of the obvious such as resetting the PRAM and repairing permissions. Anyone seen this before. The only thing that I can think of that has changed is the last security update that only got applied yesterday. Anyone got any further ideas?