I've got the same problem that you've got. I tried everything they suggested by deleting the limewire preferences folder but still same problem, it's freezes up. And sometimes when it freeze up there's a popup dialog that says " encountinering internal problem." And when i tried to change the compatibility mode, it's okey no freeze and it's say "good connection" but it doesn't download to anything that i chooses to download before. And when i tried to search for a new download, it's displays the searches but when i tried to click it to download .... it will only say "connecting" .... but nothing happens even if i waited for half an hour. I don't know what to do anymore.