The only thing I can think of to help is to assign the controlsource to be a variable and then assign the subtraction statements to the variable.
OK I lied I can think of another. You can assign them straight to the value property of the textbox instead of the control source. If you are not saving the value any where you do not need a control source.
I hope this helps.
Stephen Kuhn
Prism Network, Inc.
System Developer
At last we can reveal ourselves to the Jedi.
At last we will have revenge.
-Darth Maul