Duplicate Option Statement, Why do I get this ? (1 Viewer)

Hi
I must be missing something but I dont know where. I have a number of fields on a form and I wish to manually add a button which will perform a calculation at the 'on click' event. However every time that I try I just get this annoying message
<B>The expression On Click you entered as the event property setting
produced the following error: Duplicate Option Statement

*The expression may not result in the name of a macro, the name of a user defined
function, or [event procedure].
*There may have been an error evaluating the function, event, or macro</B>

Please tell me what I am doing wrong

Stu

Post the code behind the button.

Open the form's code module and look for duplicate function names. You may have some old code hanging around from a previously deleted button.