I'd have thought you could use something like:
Code:
Private Sub SpinDays_SpinDown()
With Range("D4")
If .Value = 0 Then Exit Sub
.Value = .Value - 1
End With
End Sub
Private Sub SpinDays_SpinUp()
With Range("D4")
.Value = .Value + 1
End With
End Sub
PS: When posting code, please use the code tags. They're on the 'Go Advanced' tab.