Subform added, but any code run in it produces error communicating with OLE or ActiveX

[wpryan]

I added a subform to a form, by using the form / subform wizard. I want to add some code to the subform in order to set properties for individual elements. Any code that appears in the subform produces an error:

"The expression On Load you entered as the event property setting produced the following error: A problem occurred while Microsoft Access was communicating with the OLE service or ActiveX control"

This message will appear for any event, and even appears when there is an "empty" event. (e.g., when the VBA window just has this, for example:

Private Sub Form_Load()

End Sub

I'm scratching my head over here. Anyone know what's going on?