one bar meaning "connectING" to limewire...
this is an obvious thing but not so easy to fix if u are using Norton...McAfee....or another strong defender...
ur firewall is blocking of limewire's connection, just go into ur firewall prtection and "Allow" limewire to connect to the internet

- if ur in doubt of it being the firewall, look on the right side of the connection bar, there will be a firewall over the world....that means ur firewall is stopping limewire!