Controller wont work?? Please Help!!

[Evil Angel]

Hi !
i need some help over here when im loading in my xbox game and start playing after 10 -20 min the controller starts to hang for me?
its like if im sitting and hold down the left analog stick to the right if you can think like the figure on the screen is starting to run round and round "wierd".
its go away if i unplugged the controller from the xbox and reconnect it again and its gone almost everytime.
is it anyone here who had a similar problem ????
Or any good ides what it could be please help me!

i got a xbox with Apple-x mod chip

PLease Help