Thanks. I had already reviewed the security settings contained in a ibm technote about a similar problem. This was a server that had been running Traveler for at least 6 years, and had already had all of these settings correct. I tried numerous fixes including resetting * users to no avail. In the end, I uninstalled Traveler upgraded just to the ,20 version and then reset all of the users again. That seems to have resolved the issue. I will try the .21 upgrade for another client this week and see if the problem is was a one off or related to the .21 code.