I have a BB Bold 9000 running OS v188.8.131.524 and BES in a Lotus Notes corporate environment. I use Inbox sub-folders in Lotus Notes and keep email on my BB for 30 days. I have noticed that if I use the feature to File an email to an Inbox Sub-Folder, the BB usually proposes the "correct" folder. I have not found any settings or documentation, but if the new email belongs to a thread then the proposed folder appears to be automatically derived from the folder used by prior emails in the thread. Has anyone noticed this behavior? Does anyone have (a link to) documentation of this "feature"?