I'm calling Excel from Access to run a lengthy report. In order to
ensure I have the correct modules loaded up, I call them explicitly:

Set oExcelApp = GetObject(, "Excel.Application")
If Err < 0 Then
Set oExcelApp = CreateObject("Excel.Application")
bStarted = True
End If

' make sure that Pricing is open and up to date
If oExcelApp.Workbooks.Count = 0 Or
Len(oExcelApp.Workbooks("Pricing.xla").name) < 0 Then
ret = oExcelApp.Workbooks.Open("O:\HPL\Addins\Pricing.xl a")
End If

oExcelApp.Visible = True
ret = oExcelApp.Run("HPLCreate.xla!BuildHPL",)

This is returning the error in the subject, 1004. The app is visible,
so I go over, view VBA, and sure enough, the module is absolutely
there. Yes, it's public.

Does anyone have a clue why this might be happening?

Maury