Is this the first time you have used LimeWire? If you previously used LW before on same computer, generally best to do a clean install of LPE. ie: delete the older LW preferences folder;
http://www.gnutellaforums.com/window...tml#post183932, backing up your downloads.dat file in this process (Birdy's post #5.) LPE generally works better after such a clean install.