Bill,
This is a function that I've been using for a while, it seems to serve me
well:
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Function IsLoaded(MyFormName)
Dim i
IsLoaded = False
For i = 0 To Forms.COUNT - 1
If Forms(i).FormName = MyFormName Then
IsLoaded = True
Exit Function ' Quit function once form has been found.
End If
Next
End Function