In Excel 2003 I put a button on a custom toolbar - the button is the 'double
bottom border' and is from the Customise-Format selection of buttons.

However this button just gives me a single bottom border. I can get double
borders in other ways, e.g. from the drop-down borders box, where the
identical-looking button does give me a double bottom border.

Is this an error, or am I missing something?

Thanks,

David Wheeler