rechecked in lucid. fails to download the jars $ firefox Looking for 0xa64783cc 0xa65407f0 0xb75fdbcc (document) java version "1.6.0_18" OpenJDK Runtime Environment (IcedTea6 1.8pre) (6b18~pre3-0ubuntu1) OpenJDK Server VM (build 16.0-b13, mixed mode) java.lang.InterruptedException: sleep interrupted at java.lang.Thread.sleep(Native Method) at sun.applet.PluginAppletViewer.handleMessage(PluginAppletViewer.java:629) at sun.applet.PluginStreamHandler.handleMessage(PluginStreamHandler.java:270) at sun.applet.PluginMessageHandlerWorker.run(PluginMessageHandlerWorker.java:82) java.lang.InterruptedException: sleep interrupted at java.lang.Thread.sleep(Native Method) at sun.applet.PluginAppletViewer.handleMessage(PluginAppletViewer.java:674) at sun.applet.PluginAppletViewer.handleMessage(PluginAppletViewer.java:649) at sun.applet.PluginStreamHandler.handleMessage(PluginStreamHandler.java:270) at sun.applet.PluginMessageHandlerWorker.run(PluginMessageHandlerWorker.java:82) java.lang.InterruptedException: sleep interrupted at java.lang.Thread.sleep(Native Method) at sun.applet.PluginAppletViewer.handleMessage(PluginAppletViewer.java:747) at sun.applet.PluginAppletViewer.handleMessage(PluginAppletViewer.java:649) at sun.applet.PluginStreamHandler.handleMessage(PluginStreamHandler.java:270) at sun.applet.PluginMessageHandlerWorker.run(PluginMessageHandlerWorker.java:82) java.lang.ArrayIndexOutOfBoundsException: 5 at sun.applet.PluginProxyInfoRequest.parseReturn(PluginProxyInfoRequest.java:65) at sun.applet.PluginStreamHandler.finishCallRequest(PluginStreamHandler.java:338) at sun.applet.PluginStreamHandler.handlePluginMessage(PluginStreamHandler.java:287) at sun.applet.PluginStreamHandler.handleMessage(PluginStreamHandler.java:208) at sun.applet.PluginMessageHandlerWorker.run(PluginMessageHandlerWorker.java:82) java.lang.NullPointerException at sun.applet.AppletPanel.showAppletStatus(AppletPanel.java:943) at sun.applet.AppletPanel.run(AppletPanel.java:466) at java.lang.Thread.run(Thread.java:636) Download error: /home/doko/.icedteaplugin/cache/http/www.slu.edu/classes/maymk/GeoGebra/geogebra_main.jar (No such file or directory) Download error: jarFile not found: 1 /home/doko/.icedteaplugin/cache/http/www.slu.edu/classes/maymk/GeoGebra/geogebra_gui.jar (No such file or directory) /home/doko/.icedteaplugin/cache/http/www.slu.edu/classes/maymk/GeoGebra/geogebra_cas.jar (No such file or directory) /home/doko/.icedteaplugin/cache/http/www.slu.edu/classes/maymk/GeoGebra/geogebra_export.jar (No such file or directory) /home/doko/.icedteaplugin/cache/http/www.slu.edu/classes/maymk/GeoGebra/geogebra_properties.jar (No such file or directory) java.lang.ArrayIndexOutOfBoundsException: 5 at sun.applet.PluginProxyInfoRequest.parseReturn(PluginProxyInfoRequest.java:65) at sun.applet.PluginStreamHandler.finishCallRequest(PluginStreamHandler.java:338) at sun.applet.PluginStreamHandler.handlePluginMessage(PluginStreamHandler.java:287) at sun.applet.PluginStreamHandler.handleMessage(PluginStreamHandler.java:208) at sun.applet.PluginMessageHandlerWorker.run(PluginMessageHandlerWorker.java:82) Exception in thread "Thread-12" java.lang.NoClassDefFoundError: geogebra/e/m at geogebra.GeoGebraApplet.a(Unknown Source) at geogebra.GeoGebraApplet.a(Unknown Source) at geogebra.GeoGebraApplet.a(Unknown Source) at geogebra.f.run(Unknown Source)