57121 error, but not a Mac in sight

[Bigj]

Hi folks

I have a very simple workbook open event that elicits a 57121 error message
whenever it runs. All the articles in knowledge base relating to this debug
code involve Macs, but I can absolutely guarantee that this spreadsheet has
never been near a Mac.

If you run the code independently (i.e. not as a workbook open event), it's
fine, and it also worked perfectly in previous editions of the workbook
(Excel 2000).

The code in question is:

Private Sub Workbook_Open()
If Sheets("Price").Range("J64") = 1 And Sheets("Price").Range("J66")
= 1 Then
Disable_SaveAs
End If
End Sub

The code hangs on the IF statement line.

Disable_SaveAs is a nice simple routine to stop people making numerous
copies of the spreadsheet once certain criteria are met:

Sub Disable_SaveAs()

CommandBars("File").Controls.Item("Save As...").Enabled = False

'Disable Right click option on Toolbars
CommandBars("ToolBar List").Enabled = False

'To disable the selection of the Save as icon
'available via Right click / Tools / customize.
CommandBars("Tools").Controls.Item("Customize...").Enabled = False


Dim iOKOnly As Integer

iOKOnly = MsgBox("SaveAs is disabled on this worksheet to prevent" &
vbCrLf & "coded budgets being replicated." & vbCrLf & vbCrLf & "Please use a
new budget form for your new project.", vbOKOnly Or vbCritical)

If iOKOnly = vbOK Then
Exit Sub
End If

End Sub

Any help on this is welcome.

Thanks!

(PS: the SaveAs function is re-enabled on "workbook before close", in case
you were wondering...)