Thanks for that Bill. Until this topic came up I'd only ever used the Programme Menu method but because of the heated arguments, I really became concerned that perhaps I was doing more harm than good which is why I questioned whether the Factory method was the correct way. However my 'gut feeling' was that having to switch off and on again to rectify a small correction/alteration in the PMs was a bit drastic. I ploughed through the manual looking for the answer without success.

Thanks again, it's a great help.

Audrey