I have code originally generated in excel (office 97). The code is a
simple maco which runs when shape (which looks like a Button) held on a
worksheet is clicked.

One of the requirements is that the button should be deleted from the
worksheet to stop the code being accidentally re-run. The following
code works in Office '97 but generates a run time error in 2003

If IsAnyShape(wsSrc) = 1 Then
wsSrc.Shapes("ImpPhotoBut").Delete

End If

Where IsAnyShape tests for the existence of a shape
wsSrc is a worksheet variable
ImpPhotoBut is the name given to the shape

Incidentally 'wsSrc.Shapes(1).Delete' delivers the identical error.

Any thoughts on why the error occurs in the later software platform and
/or a workaround for this code.