Delete LW's preferences folder when LW's properly closed. If you're using Windows, see point 3 below ( & also point 2 if you've used much older versions of LW in the past).
Fixes for LimeWire

This will kill all of your settings within options, you'll have to ga back through afterwards & reset things to the way you like them.

Don't forget about the forum search. If you're waiting for a reply, you can use the forum search to look for threads about your problem. Most problems aren't new.