Right click invokes missing macro- how?

[dubmunkey]

Hi all,

an app an ex-colleague created produces an error message when i right click on a form field.

It says:

mircosoft access cant find the macro 'ucas'

now the macro isn't there but i need to find out what is invoking this macro, there are no vb events programmed for the field so it's not vb calling the macro...

any ideas of how i can track down why the macro is being invoked on a right click on a certain field?

greg