I keep thunderbird pinned to my Windows taskbar and that is usually where I look for it. Every so often and much mor6e frequently than I like it vanishes from there and I believe that that is when it an update to it arrives. To maintain the state I like I then need to delete the now-dead pinning for the taskbar, find thunderbird afresh and leunch it and re-pin. This is not a terribly new behaviour but the grief threshold in my life has just been passed leading me to ask if this is a thunderbird issue or a windows one and if there is some scheme I can use to keep the application pinned pretty well come what may. This is obviously not life critical but it has been winding me up! Many thanks. Arthur