OK probably before people may have had difficulty connecting to you althugh you could connect. Can you provide me the specifics of your set-up:
1. Modem & router brand & model no.'s
2. Where you are trying to connect from (home, school, work, etc.)?
3. Java version? Can update here: http://www.java.com/en/download/windows_automatic.jsp for 1.4 or here for 1.5: http://java.sun.com/j2se/1.5.0/download.jsp