Hi All, I had some real problems with FSSession tonight. The first problem was when the FSSession tried to load, it would get an error along the lines of failed to import Acquisition. Next step was when the user session tried to rename and the file wasn't there. This threw in error in a Zope commit transaction, and rendered the site useless until a restart was performed (this was correct action by Zope, i.e. all commits are blocked to avoid the database becoming more screwed after a commit fails). First thing I did was put a try around the dump to stop it from throwing an error if the file doesn't exist. This is certainly a preferred option for us, as it does not affect the function of the FSSession at all (Except that one session is obviously now duff). Second thing in tracking down the culprit, I finally figured out that what I was doing was quite naughty. Basically creating an option for the user to return to the site and have his/her name already entered into the login screen. The mistake was putting AUTHENTICATED_USER into FSSession, it basically tried to store the object, when all I wanted was the string username! Oops! Regards Gresh