Jock,

Try something like this:

Private Sub Worksheet_Change(ByVal myRange As Range)
Dim c As Range
Set myRange = Range("H8:H400")

For Each c In myRange
If c.Value = "PRA" Then
c.EntireRow.Font.ColorIndex = 3
Else
c.EntireRow.Font.ColorIndex = 0
End If
Next
End Sub

--
Dan