Hi Rasm,

How you load the values into the listbox ?

I tried both RowSource and Array and it works fine

Code:
Private Sub UserForm_Initialize()
Dim s As String
s = "a2:n14"
With Me.ListBox1
    .ColumnCount = 14
    .RowSource = s
    .ColumnHeads = True
End With

End Sub
Code:
Private Sub UserForm_Initialize()
Dim a
a = [a2:n14]
With Me.ListBox1
    .List = a
    .ColumnCount = UBound(a, 2)
End With

End Sub