Hello all! I am tearing my hair out trying to figure this out, I won't
go into what exactly I am trying to eventually acomplish but just what
I need to work outnow. (if you know what I mean? :-/ )

I have 15 seperate worksheets each containing two columns (20 rows) of
dates. I need some sort of formula to count how many times a date
appears when it appears more than once, but only in a different sheet.
So for example if I have 2nd Jan 2006 in two seperate sheets it will
count as 1 duplicate. All I need is for a figure of how many times any
date clashes to appear on my summery page.

Hope I explained that ok. Please go easy as I'm not very hot on excel
(just enough to get me through).

Thanks in advance.
Dan