VNC Not working after upgrade to OES2 SP3

Everything else seems to work in the remote manager -- I just can't
access the VNC consoles.

Here is a dump of what appears in the browser console. The error appears
to be at the end.

**** Exception: java.lang.ClassFormatError: Incompatible magic value
1011373133 in class file VncViewer ***

Is this a browser incompatibility or...??????? I have tried FireFox 3
and For IE 8 and 9.

***************************************


Java Plug-in 1.6.0_24
Using JRE version 1.6.0_24-b07 Java HotSpot(TM) Client VM
User home directory = C:\Users\dave
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------


java.lang.ClassFormatError: Incompatible magic value 1011373133 in class
file VncViewer
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknow n Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Un known Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(U nknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Un known Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Un known Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unk nown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unk nown Source)
at
sun.plugin2.applet.Plugin2Manager$AppletExecutionR unnable.run(Unknown
Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassFormatError: Incompatible magic value
1011373133 in class file VncViewer

***********************************


End of browser Java Console dump.