I have searched the web and found other people with a similar problem to mine but no solution.<BR><BR>I have a form with a button on it, and a simple "hello world" message box, attached to the onClick event.<BR><BR>"Microsoft Access<BR>The expression On Click you entered as the event property setting produced the following error: A problem occurred while Microsoft Access was communicating with the OLE server or ActiveX Control.<BR><BR>*The expression may not result in the name of a macro, the name of a usr-defined function, or [Event Procedure].<BR>*There may have been an error evaluating the fuction, event or macro."<BR><BR>I am running windows NT 4.0 (works fault) and Access 2000.<BR><BR>Thanks for any advice you may have.<BR>Steven Simpson :)