Well I have no clue what could be your problem.
The fact is Limewire and Java work well for 99% of the users, so it has to be something on your computer, some setting or programme.

Make sure you use the latest versions of Limewire and Java.
Have you tried disabeling some programmes to see if that solves anything ?
e.g. shut down Norton, or even reinstall Norton.
Do you have or have you ever used tweaking programmes ?

A systematic search is the best way to tackle this problem.

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