Try uninstalling Java in the add and remove programs then reinstall JRE using the offline installer here
http://java.sun.com/javase/downloads/index.jsp


Edit: I see Grandpa already answered this in another thread. Did you follow his advice and what were the results?

Have you tried the fixes in this thread: Fixes for Limewire when LW isn't operating as it should!.

Also could you post the details of your set-up: System details - help us to help you.

Another thought: Tip: Purge the Downloads Queue!

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