>Does anyone know what code or properties can cause stacking errors, such as insufficient stack space.
>
>I am using thisform.release and clear events and I still encounter these errors, however it has been suggested that perhaps something is constantly looping and causing this error to occur.
>
>Any thoughts?

I've seen two causes:

1) Looping Refresh calls
2) Looping UDF calls in while loop with bad terminate condition