[RESOLVED] MSG on Workbook Open event EXCEL VBA

[billhuard]

I Got message displayed to the user every time the workbook is open.
So I putted it in the Workbook Open sub in the ThisWorkbook.

Private Sub Workbook_Open()
Msgbox "To fully automate this workbook, automatic calculation must be ON"
End Sub

Everything works fine.

Now want I want to do, is to put a checkbox witch the user can check to not display this message anymore.

Is it possible?? How??