I have a spreadsheet with 4 pages; each page has a simple list, with a number
in the left column and a letter in the right column.

On the various pages I do a vlookup on the first column of the others ...
some work and some just flat don't! How do I figure this out?

BTW ... spreadsheet is at http://www.heritage-dr.com/vlookup-prob.xls

How do I fix this?

Thanks in advance.