You sound like you may have picked up a virus...
Check your Shared folder outside of Limewire...
Go to
Docs and setts
user name (yours)
Shared....

My suggestion would be to visit Norbiesworld, he will help you get rid of the virus.....Check this thread out, his link is at the bottom...
http://www.gnutellaforums.com/showthread.php?t=41432