--- JvStringGrid.pas	Fri Jan 08 06:09:12 2010
+++ JvStringGrid.pas	Fri Jan 15 19:37:28 2010
@@ -957,7 +957,8 @@
   Col := Msg.Column;
   Row := Msg.Row;
   EditorMode := True;
-  InplaceEditor.SelectAll;
+  If Assigned(InplaceEditor) Then
+    InplaceEditor.SelectAll;
 end;
 
 procedure TJvStringGrid.InvalidateCell(AColumn, ARow: Integer);