Thanks Terry and Lee for your further comments. I have decided that it is fortunate that, of all those tags that have an age-related function in them, I have only used this particular tag witness sentence once so far! So, luckily, my problems are tightly circumscribed. In the meantime, in limiting the number of people in my Second Site project, I have managed to kill off all my exhibit galleries! I seem to be making troubles for myself! Thanks for everyone's help Nick