Try this workaround I just posted to another site where someone had the same problem:
https://getsatisfaction.com/mozilla_messaging/topics/group_by_sorted_tree_collapses_for_unified_folder_when_switching_to_single_account_and_back -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/803593 Title: "Grouped by Sort" view is not saved in Unified Folders To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/803593/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs