Hi,
There is a command button on the Excel worksheet that I am trying to
modify or get rid of.  In the MS VB editor, in "sheet 1", the code
reads:
Private Sub CommandButton1_Click()

Call RunCalcs

End Sub

However, this code does not specify the property of the commandbutton
that I see on the Excel worksheet itself.  (ie. color, dimension,
captions on it)  If I delete it, the button is still there.
Now, I placed the following code as an experiment to add another button:
Set Newbutton=sheet1.OLEObjects.Add("Forms.CommandButton.1")
With NewButton
.left=4
.Top=4
.Width=100
.Height=24
.Object.Caption="123"
End With

and the a second button appears on the worksheet with correct
dimension/caption etc.  But when I delete the code I just wrote and
re-run the code,  the button remains! This is probably very simple but
I am new at VBA and ActiveX...  What's going on?

Buttons aren't (usually) removed "according" to the code, though it
looks like you DID create one using code.

A command button CAN be removed by right-clicking it or by using the
Drawing selector tool on the Drawing toolbar.

References:
This one is kind of the opposite of what you want to do, but does
explain how it was likely done in the first place:
http://www.officearticles.com/misc/methods_to_run_a_macro_in_microsoft_office_applications.htm

Drawing tools and the Drawing toolbar:
http://www.officearticles.com/misc/drawing_tools_in_microsoft_office.htm

Hmm. For some reason I can edit it on my laptop but not in my
office... Anyhow, it seems to be working... thanks for the response.