IE 5.5 on two machines. Sending mail on one WinME machine produces a Task Error message. It sends the mail ok, and then tries to send it again from the (empty) Outbox and fails. Thus the error message. And similiarly on the Win98se machine. This one wants to send the same message five times! I suspect that IE5.5 has a flaw but couldn't find anything on it at MSoft.
Anyone else with the same symptoms?