Hi, Drag-and-drop of messages in my Thunderbird install has quit working (for a number of weeks now). I've put Thunderbird into Troubleshooting Mode, but it still doesn't work. Also, went ahead and permanently disabled all add-ons and reset Thunderbird settings back to default (actually removed a few out-of-date add-ons as well). Still not working. Tried uninstall and reinstall. Still not working. Thanks!