Division by zero error in VBA Office 2011 for Mac, AddPicture command

This is a puzzle.  I've written a macro to let the user simply browse for and insert a picture from a pre-determined graphic library location.  Simple VBA code.  Works fine until I get to the very last line below, the AddPicture command.  It gives me a "Division by Zero" error, which I've never seen.  The weird thing is that I can go into debug mode, copy the same line that is generating an error into my immediate window and execute it there, and it inserts the picture just fine.  What else might be going on to cause the error?  This is in PowerPoint for Mac 2011.  Thanks for any suggestions.

Sub insertgraphic()

If Application.Presentations.Count = 0 Then
    MsgBox "A presentation must be open to use this command.", vbInformation
    Exit Sub
End If

Call makesureslideselected

Dim currentslide As Slide
Dim pickedgraphic As String
Dim pickedgraphicfolder As String
Dim storedgraphicfolder As String

Set currentslide = ActivePresentation.Slides(ActiveWindow.View.Slide.SlideIndex)

On Error Resume Next
    storedgraphicfolder = GetSetting("Microsoft PowerPoint", "HPCToolbar", "storedgraphicfolder", "")
    On Error GoTo 0
If storedgraphicfolder = "" Then storedgraphicfolder = "Macintosh HD:Library"

Dim sMacScript As String
             
sMacScript = "set pickedgraphic to (choose file with prompt " & """Select a file to import"" default location" _
& " alias """ & storedgraphicfolder & """) as string" & vbLf & "return pickedgraphic"

pickedgraphic = MacScript(sMacScript)

currentslide.Shapes.AddPicture fileName:=pickedgraphic, linktofile:=msoFalse, savewithdocument:=msoTrue, Left:=100, Top:=100

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Bryce BassettFreelance VBA programmerAsked:
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Bryce BassettConnect With a Mentor Freelance VBA programmerAuthor Commented:
Well, this is definitely a workaround, but I was able to get this to work consistently by executing the command twice, and simply ignoring the "division by zero" error the first time:
On Error Resume Next
currentslide.Shapes.AddPicture fileName:=pickedgraphic, linktofile:=False, savewithdocument:=True, Left:=100,
currentslide.Shapes.AddPicture fileName:=pickedgraphic, linktofile:=False, savewithdocument:=True, Left:=100,
On Error Goto 0

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Thanks, John, for the tip on the proper use of the default parameter in GetSettings.  I was very happy to learn that there is an equivalent to the Windows registry on the Mac and that you can access it from VBA using the same commands.
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HuaMin ChenSystem AnalystCommented:
Hi,
You need to locate the relevant place and then put one "if" statement there, to change 0 to 1.
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Rgonzo1971Commented:
Hi,

pls try

currentslide.Shapes.AddPicture fileName:=pickedgraphic, linktofile:=False, savewithdocument:=True, Left:=100, Top:=100

Regards
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Bryce BassettFreelance VBA programmerAuthor Commented:
Rgonzo, I made the change you suggested but am still getting the same error.  Any other ideas?

HuaMinChen, can you be more specific?  What value do I need to change from 0 to 1?  I'm not using any numeric values in this code that I know of.

Thanks
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JSRWilsonCommented:
I don't see any way the code you have could produce that error are you sure there isn't other code you haven't mentioned.

This is not the problem but you could replace this

 
   storedgraphicfolder = GetSetting("Microsoft PowerPoint", "HPCToolbar", "storedgraphicfolder", "")
    On Error GoTo 0
If storedgraphicfolder = "" Then storedgraphicfolder = "Macintosh HD:Library"

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With

    storedgraphicfolder = GetSetting("Microsoft PowerPoint", "HPCToolbar", "storedgraphicfolder", "Macintosh HD:Library")

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 which will do the same thing.
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Bryce BassettFreelance VBA programmerAuthor Commented:
Appreciate the suggestions from both experts, but neither one solved my issue.  In the meantime, I came up with a solution on my own.
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