Private Sub AcadDocument_BeginCommand(ByVal CommandName As String)
If (CommandName = "TEXT" Or CommandName = "MTEXT") And _
ThisDrawing.ActiveTextStyle.BigFontFile = "" And _
LCase(Right(ThisDrawing.ActiveTextStyle.fontFile, 4)) <> ".ttf" Then
ThisDrawing.ActiveTextStyle.BigFontFile = "gbcbig.shx"
End If
End Sub