Hello!

Which version of LimeWire are you running?

If it is the latest version then you should downgrade to the previous version because the newest version does not work well with 10.1.5 for some reason.You will find old and the new versions here:
http://router3.limewire.com/download/

Before you install the downgraded version you should ofcourse un install the current version.

But LW will soon be out in version 2.5 which will be a major upgrade and hopefully it will work better in OS X 10.1.5.

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<img src="http://www.jordysworld.de/emoticons/blob16.gif">Sincerely Joakim Agren!