Thanks, Vojtech, with your help light is beginning to dawn :smiley:

Yes, now you mention it my old version did display the "unexpectedly terminated connection " message under these circumstances.

And Yes, the “Send and receive messages at startup” is selected. I have now de-selected it and, though I have not tested it off-line, I can see that this has probably solved my difficulty.

Superb program–Superb back-up. Many thanks again ;D