Linux: Kann nicht installieren

2.3.8 konnte ich installieren, aber 2.4.3 will plötzlich root und geht nicht zu installieren. Kann jemand helfen?
Vorher extra als root anmelden hat auch nix gebracht. System: aktuelles Debian sid x86_64

sudo java -jar /media/daten/Linux/Java/UltraMixer-2.4.3-linux.jar
Password:
java.lang.NullPointerException
at javax.swing.MultiUIDefaults.getUIError(MultiUIDefaults.java:133)
at javax.swing.UIDefaults.getUI(UIDefaults.java:742)
at javax.swing.UIManager.getUI(UIManager.java:989)
at javax.swing.JOptionPane.updateUI(JOptionPane.java:1859)
at javax.swing.JOptionPane.(JOptionPane.java:1822)
at javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:841)
at javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:650)
at javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:621)
at com.izforge.izpack.installer.GUIInstaller.showFatalError(Unknown Source)
at com.izforge.izpack.installer.GUIInstaller.(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at com.izforge.izpack.installer.Installer.main(Unknown Source)
Exception in thread “main” java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)
at sun.awt.X11.XToolkit.(XToolkit.java:89)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at java.awt.Toolkit$2.run(Toolkit.java:834)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:826)
at sun.swing.SwingUtilities2$AATextInfo.getAATextInfo(SwingUtilities2.java:120)
at javax.swing.plaf.metal.MetalLookAndFeel.initComponentDefaults(MetalLookAndFeel.java:1556)
at javax.swing.plaf.basic.BasicLookAndFeel.getDefaults(BasicLookAndFeel.java:130)
at javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:1591)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:514)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:554)
at javax.swing.UIManager.initializeDefaultLAF(UIManager.java:1317)
at javax.swing.UIManager.initialize(UIManager.java:1406)
at javax.swing.UIManager.maybeInitialize(UIManager.java:1394)
at javax.swing.UIManager.getInstalledLookAndFeels(UIManager.java:394)
at javax.swing.UIManager.installLookAndFeel(UIManager.java:437)
at net.sourceforge.mlf.metouia.MetouiaLookAndFeel.(MetouiaLookAndFeel.java:83)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:558)
at com.izforge.izpack.installer.GUIInstaller.loadLookAndFeel(Unknown Source)
at com.izforge.izpack.installer.GUIInstaller.init(Unknown Source)
at com.izforge.izpack.installer.GUIInstaller.(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at com.izforge.izpack.installer.Installer.main(Unknown Source)

java -version
java version “1.6.0_22”
Java™ SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot™ 64-Bit Server VM (build 17.1-b03, mixed mode)