Unless you have a strange setup, no matter what version, you don't run the pandora ripper by clicking its .jar. Since you say you have the most recent version, its really easy as they come with a .bat already included. Just execute the pandora.bat file instead by navigating to the folder its located in, inside a command prompt, and type pandora.bat 8080. The port number can be really whatever you want, as long as it isnt being used by anything else.