for xp users
easiest way to find your limewire directory is to use the search function from the start menu.
delete all limewire directories
and ensure limewire is closed on the task bar.
additional note;
ive had other problems with my dsl connection of late, which may have a bearing on the above connection problems.
I had xp update on automatic, and believe this was compromising my bandwidth. I have since turned automatic updates off, and so far no problems.

mac/os users;
i cant really comment as ive never used the mac/os systems, but i would have thought the method would be roughly the same.

hope this helps you all