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Hi Buenchico. Thanks for that. It is such that even an idiot can understand it. I have printed it out and will follow it slavishly. My son, who is a techie for the University of the West of England calls me a technophobe and if I phone him he always answers "TSG" (Technical Support Group". I try not to phone him because I think his mother tongue is either binary or hex and I could have a more meaningful conversation with a Klingon. Again, many thanks, Roc