Using pop3, I set Thunderbird to not download messages over 100kB via the Tools/Account Settings/Disk Space menu. When a message over 100kB arrives, I get the message header plus the notice: "Truncated! This message exceeded the Maximum Message Size set in Account Settings, so we have only downloaded the first few lines from the mail server."...and a link to: "Download the rest of the message." When I click the "download" link it all works fine. However, after I click the download link and then try to read a different message, the download seems to abort! I.e., to download a truncated message I have to sit there on that same message until the entire large message downloads to completion. With a slow internet connection this can take many minutes. It would be a LOT handier if the download would continue in the background, so I could look at the rest of my emails then come back later to the large message. This functionality was available in Eudora back in the late 1990's (!!) and I used it all the time. Is there a way to do this in Thunderbird? If not, is there a way to request this functionality be added? Thanks!