Dear wolf11th,
Please open file "\CuteSoft_Client\CuteEditor\Scripts\Constant.js", you will find the following line in this file:
editorconstant._CreateEditingTableStyle = "<table border='0' cellspacing='2' cellpadding='2' width='500'>";
Please change it to:
editorconstant._CreateEditingTableStyle = "<table border='1' cellspacing='2' cellpadding='2' width='500'>";
Thank you for asking