tei
It's sounds like the license warning pop-up. In LW go to Tools>Options>Searching>Basic> then tick the box "Show License Warning" then click apply.
After that try to d/l something and when the License warning pops-up tick "always use this answer" then click "yes" and you should be good to go.
For more info follow the link:
license problem
Also you posted in the wrong forum, Limewire posts go here
LimeWire (Cross-platform) 
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