<A href="http://blog.winkelmeyer.com/web/blog.nsf/entry.xsp?permalink=beware-of-non-us-characters-in-mail-file-names-when-using-traveler-853" target="_blank">Rene Winkelmeyer says IBM has found that Traveler 8.5.3+ has some problems</A> with characters such as Umlauts. Rene has included a workaround for the issue.