Max,
You are a genius! It works a treat, not sure how it works but it
works. I wanted to put the category titles in column A, but that messed
things up a bit, so I moved to column C and then it worked in B,
proberbly because of your reference to A in the formula.
You are right about deleting entire rows etc, I tend to do that and
must be more careful in future.
Just one last question, what is the 'IV' in the formula and why
reference the A column?

Thanks a lot,
Richard.


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Richard J
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