Try these fixes...
Try uninstalling your Java from the add/remove programs and then re-install the JRE 5.11 offline version....
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11
If that does not help with your problem try deleting your preference folder...
Fixes for Limewire when LW isn't operating as it should
If they do not help at all....Go To (in limewire)...
Tools > Options > Advanced > Firewall and tick the manual port forward box and enter 64049 and then enter that same number into the listen port box and select apply...
Close LW down and then re-start...Hopefully that will do the trick...
