It doesn't make any sense why one account would be able to log in and not the other unless there are special settings on your account that is not allowing outgoing or incoming connections. Ovbiously you can log in to this forum with no troubles, maybe try checking over your configuration in LimeWire to make sure you are allowing the best possible connection for your account. You might also try making a new account to see if it will work then. Other than that I don't know what else you can do. Sorry.