1) What happens if you hit [F9] ?
If this recalculates the correct results - then your Calculation option
is set to "Manual".
2) Did you, by mistake, fix the References of the concatenated cells with $
[like: $A$1] ?
Micky


"Lyn" wrote:

I'm concatenating two columns in an excel data file. The formula works, but
won't replicate in the column to subsequent rows, all it will do is copy.
I'm tearing my hair out - I've done it before but all of the sudden it won't
work. Can you help?