Rein, I downloaded all the things that you had recommended and now it is running just fine! I'm running the 2.0.17 server. Now to test things with the 2.0.33 client! 73, Glenn On Fri, Apr 12, 2013 at 5:13 PM, Rein Couperus <rein@xxxxxxxxxxxx> wrote: > Your java environment is not complete... > Try installing with: > sudo apt-get install java-common openjdk-7-jre openjdk-7-jdk > icedtea-7-plugin > sudo apt-get installopenjdk-7-jre-lib librxtx-java > openjdk-7-jre-headless > > what does your 'java -version' say? > mine says: > java version "1.7.0_15" > OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1~12.10.1) > OpenJDK Client VM (build 23.7-b01, mixed mode, sharing) > > > Rein PA0R > > > -- > > > glenn@glenn-Satellite-A205:~$ java -jar V2Modem.jar > INITIALIZED > InputMixerNotFound > OutputMixerNotFound > Exception in thread "main" java.awt.HeadlessException > at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:207) > at java.awt.Window.<init>(Window.java:535) > at java.awt.Frame.<init>(Frame.java:420) > at java.awt.Frame.<init>(Frame.java:385) > at javax.swing.JFrame.<init>(JFrame.java:174) > at v2modem.ModemUI.<init>(ModemUI.java:68) > at v2modem.Main.main(Main.java:156) > glenn@glenn-Satellite-A205:~$ > > > 73, Glenn WB2LMV >