We can only speculate as to what is wrong wit your setup. The best way we can help you is if we can see your profile.

also check out these similar problems
https://www.youtube.com/watch?v=G5q17b7W74c
http://isboxer.com/forum/viewtopic.php?f=45&t=4637
http://www.dual-boxing.com/threads/3...-FTL-Follow-Me
http://www.dual-boxing.com/threads/4...Boxer-or-Jamba