How can I install the "The cat is back" Junior A, on the same PC but with another serial-ID? The old one is already expired. I have bought a new book but I can't start the program. I have an "error 220" message.
You cannot use the product if the serial has expired. If you'll install it on another computer, the application will need another serial number based on that installation ID. Try contacting the developer/manufacturer and explain the situation. If it's possible, they will generate another Serial-ID based on your purchase.