java.lang.NoClassDefFoundError: org/eclipse/swt/widgets/Listener

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http://www.linuxquestions.org – Linux newbie, but not ignorant. Followed steps to this point, can't get client.jnlp from "http://www.campusbuyback.com/download.html" to work. Here's what I've done so far to make sure java was enable and installed correctly: Code: sudo apt-get install xubuntu-restricted-extras Code: sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts accepted the license, completed the install. Every time I try and launch the app from the listed site above, I get an application error with the following data showing: Launch File Code: <!DOCTYPE jnlp PUBLIC "-//S (HowTos)