Hi Mark,
I'm glad you want to be selective in what is capitalized.
You would want to use a Change Event Macro. Normally
this would encompass an entire column but for only two
cells the macro following was adapted from
http://www.mvps.org/dmcritchie/excel/event.htm#change_v
Private Sub Worksheet_Change(ByVal Target As Excel.Range)
On Error GoTo ErrHandler
If Target.Address = "$C$4" Or Target.Address = "$C$5" Then
Application.EnableEvents = False
Target.Formula = UCase(Target.Formula)
End If
ErrHandler:
Application.EnableEvents = True
End Sub
To install right click on the sheet tab, then
"View Code", place the above macro after
the Option Explict statement
For more examples see
http://www.mvps.org/dmcritchie/excel/event.htm
http://www.mvps.org/dmcritchie/excel/proper.htm