We were running Excel 97 (with VBA code) on NT with no problems. We have
upgraded to Windows XP Pro and Excel 2003.

When we run our Excel 97 app, the macro button is invisable (or does not
exist). If the PC is rebooted, the button re-appears and works. There is no
code in the app to make the button invisable.

This does not happen everytime, sometimes the button appears without a
problem.

Any ideas?