Hi clev,

Have you tried any of the fixes in this thread? If not, start off with Java. Download the JRE offline installer of this version.
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11
Remove any other Java versions before you install this version.

If that doesn't fix things, delete LW's preferences folder when LW's properly closed. See point 3 here & also point 2 if you've used much older versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will kill all of your settings within options, you'll have to go back through afterwards & reset things. If you're not sure of your settings, go through LW's tools > options & write them all down, so that you can reset things later
http://www.gnutellaforums.com/genera...der-vista.html

If LW's still not opening, try changing compatibility (point 5 in the fixes thread). If you're using Vista, run in compatibility mode for XP.