Start-up Error Servio 1.0

OK - yesterday it was running fine - today I get the following error:

java.lang.ClassNotFoundException: org.serviio.console.ServiioConsole
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.exe4j.runtime.WinLauncher.main(Unknown Source)

When serviio tries to load - or when I try to open the console.

[zip]

what OS, what Java version?

Windows 7, it was on 5.6 before - but now I have removed serviio and updated to Java 6. For now it is working again.

Sorry - just checked - the version of java.exe where it didn't work suddenly was 6.0.240.7 and now it's 6.0.330.5