Ever since the last update, which is supposed to be TB 3.1.2 compatible, my incoming mail is getting tripled. The culprit is the ESET Smart Security Extension 18.104.22.168 (verified by disabling it; the problem persists only when this add-on is enabled). I've tried to fiddle with email client protection settings, reinstalling both applications, etc. but to no avail. It's a minor thingy yet quite annoying. Help appreciated. Using Windows 7, 32bit (also the same problem on the 64bit box), IMAP. If additional information is needed, do tell.