Hey Dan

Forgot to include the bit on how to add a Macro Button.

In 2010 it would be:
Developer | Insert | Form Controls, then select the button.

Apologies, It's been so long since I have used older versions, I have
actually forgotten the steps... O.o

anyhoo, if and when you manage to work it out and insert a button on
your sheet, right click on the button and select ( Assign Macro ), then
select reCalc_Scores.

Hey presto, your in business...

HTH
Mick.