To delia,
Many kind thanks.
While I'm here, I ought to report another problem. I was writing a Private Message to another user, my login name secure at the masthead, but when I hit either "preview" or "submit", the system acted as if I had logged out. I logged back in again, but my PM was lost. This may be one for the Deep Geeks. (interesting that this is a compliment in tech circles!)
Thamks in advance. I wish you well.