I am getting the following message when I try to start Limewire pro:

STARTUP ERROR

LimeWire version 2.6.5 or above

Java version 1.3.1_04 from Sun Microsystems Inc.

Windows XP v. 5.1 on x86

Free/total memory: 3928040/4128768



java.lang.reflect.InvocationTargetException: java.lang.NoClassDefFoundError: com/sun/java/util/collections/List

at com.limegroup.gnutella.gui.Initializer.initialize( Unknown Source)

at com.limegroup.gnutella.gui.Main.main(Unknown Source)

at java.lang.reflect.Method.invoke(Native Method)

at RunLime.main(Unknown Source)



-- listing properties --

MAX_UPLOADS=

INSTALLED=true

DIRECTORIES_TO_SEARCH_FOR_FILES=

DIRECTORY_FOR_SAVING_FILES=

SAVE_DEFAULT=

JAR_NAME=LimeWire.jar

MAX_SIM_DOWNLOAD=

CONNECTION_SPEED=

Any ideas on how to get it running again? It was fine until I loaded the registered version.
Thanks,
Jeff E