I have various folders that mail gets sorted into via Rules/Filters. I go through each one, read the mails and close Tbird - so far, so good. When I go back and start Tbird again later, it opens on the last folder I was in when I previously closed it. How do I get it to start at the Inbox every time? Looked around for a checkbox or something to control this and couldn't find anything. Is it not there or is it hidden somewhere?