Xletview + javatv?

Olá pessoal!
Alguém sabe o porque que toda vez que tendo rodar algum aplicativo no XletView, ele dá esse erro:

[XleTView]-INFO->loading Xlet… [SimpleXlet]
java.lang.ClassNotFoundException
at net.beiker.xletview.classloader.XletClassLoader.loadClass(Unknown Source)
at net.beiker.xletview.xlet.XletManager.runXlet(Unknown Source)
at net.beiker.xletview.xlet.XletManager.setXlet(Unknown Source)
at net.beiker.xletview.Startup.(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at net.beiker.xletview.Main.main(Unknown Source)

[XleTView]-INFO->Application not loaded!

Vlw!!