debian squeeze (jvm java class not found)

[Alejandro García <alejandro18044972@gmail.com>]

ante todo un saludo a todos.

me he instalado debian 6.0 squeeze cuando me instale el sun java 
pero hay un problema cada vez que entro en una pagina web que 
usa un applet java no se ejecuta veo los detalles y los errores son 
mas que todo por que supuestamente le falta una clase a 
continuación muestro el error:

cargar: clase COM.volano.VolanoChat.class no encontrada.
java.lang.ClassNotFoundException: COM.volano.VolanoChat.class
	at 
sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:152)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
	at 
sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:445)
	at 
sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:2880)
	at 
sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1397)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.ConnectException: Network is unreachable
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at 
java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
	at 
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
	at 
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
	at java.net.Socket.connect(Socket.java:525)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:161)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
	at sun.net.www.http.HttpClient.New(HttpClient.java:306)
	at sun.net.www.http.HttpClient.New(HttpClient.java:323)
	at 
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:860)
	at 
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:801)
	at 
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:726)
	at 
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1049)
	at 
java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:373)
	at 
sun.plugin2.applet.Applet2ClassLoader.getBytes(Applet2ClassLoader.java:458)
	at 
sun.plugin2.applet.Applet2ClassLoader.access$000(Applet2ClassLoader.java:46)
	at 
sun.plugin2.applet.Applet2ClassLoader$1.run(Applet2ClassLoader.java:126)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:123)
	... 6 more
Excepción: java.lang.ClassNotFoundException: 
COM.volano.VolanoChat.class