First two suggestions I'd make are (1) Delete your LW preferences; instructions here: Point #2 in Fixes for Limewire (sample image included near bottom of page.)

(2) Uninstall Java using the Add/Remove Programs Control Panel & reinstall using the OFFLINE installer. http://www.java.com/en/download/manual.jsp




Did you re-install LW by the way, or is this a sudden new problem for an experienced user? Judging by the location of your preferences folder, I'd suggest an experienced user. The reason I ask is there is a small chance a virus 'might' be involved which is mucking LW up when starting up.