You have created the button from the Controls toolbar. Delete the button and
make a new one from the Forms Toolbar.

There is often a lot of confusion over this.

HTH
Anders Silvén

"R. Holland" skrev i meddelandet
...
Excel 2002, following the instructions in Help, I create
a button to which I wish to assign a macro. Help tells me
to right-click on the button and a menu selection will
come up "Assign Macro." When I do this, no such menu
selection comes up. The question is, how do I execute a
macro using the button? Thanks for your help.