This works by double-clicking in a cell, and toggles the check-mark.

Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As
Boolean)
Const WS_RANGE As String = "H1:H10" '<=== change to suit

On Error GoTo err_handler
Application.EnableEvents = False
If Not Application.Intersect(Target, Range(WS_RANGE)) Is Nothing Then
With Target
.Font.Name = "Marlett"
Select Case .Value
Case "": .Value = "a"
Case "a": .Value = ""
End Select
End With
Cancel = True
End If
err_handler:
Application.EnableEvents = True
End Sub


'This is worksheet event code, which means that it needs to be
'placed in the appropriate worksheet code module, not a standard
'code module. To do this, right-click on the sheet tab, select
'the View Code option from the menu, and paste the code in.



--
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

"Lasocki" wrote in message
...