Hi Steve When you reply to the list its a good idea to copy back part of the posting you are replying to (not all but enough to keep it in context) as seeing your reply will mean nothing to the majority on the list and even less to those of us on many lists Additionally its always best to keep the same subject line to keep the posts in a thread and easily findable in the archives There may be other researchers with the same interests, now and in the future who may connect if they can find the posts Best wishes Nivard Ovington, in Cornwall (UK) > Yes please if you have time > steve