User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030125 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030125 When any View is active (eg. last 5 days) the message list cannot be threaded, It can be sorted by any field but not by thread. If it's by design the thread column should be hidden then, I guess. Reproducible: Always Steps to Reproduce:

Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.4b) Gecko/20030512 Same problem on 1.4b SPARC. Particularly annoying since when your view is set to `Not Junk` you can't view threads. You must have View set to `All` to view threads. Affects local and IMPA mail folders and news also.

Note in particular bug 135326 comment 1. *** This bug has been marked as a duplicate of 135326 ***