Any suggestions?

./LimeWire
Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)

Stack Trace:
java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(X11Graphic sEnvironment.java:59)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvir onment(GraphicsEnvironment.java:58)
at java.awt.Window.<init>(Window.java:188)
at java.awt.Frame.<init>(Frame.java:315)
at java.awt.Frame.<init>(Frame.java:262)
at javax.swing.JFrame.<init>(JFrame.java:141)
at com.limegroup.gnutella.gui.GUIMediator.<clinit>(GU IMediator.java:98)
at com.limegroup.gnutella.gui.ResourceManager.<init>( ResourceManager.java:92)
at com.limegroup.gnutella.gui.ResourceManager.instanc e(ResourceManager.java:79)
at com.limegroup.gnutella.gui.Initializer.<init>(Init ializer.java:82)
at com.limegroup.gnutella.gui.Initializer.<clinit>(In itializer.java:42)
at com.limegroup.gnutella.gui.Main.main(Main.java:17)
at java.lang.reflect.Method.invoke(Native Method)
at com.zerog.lax.LAX.launch(Unknown Source)
at com.zerog.lax.LAX.main(Unknown Source)
GUI-