Reply to Two Hercules dj controllers on same pc

Last week i found one of my old hercules dj control mp3 and i thought to use it with another one i use in traktor for effects.
When i connect both controllers i get the blue screen on win xp and win 7
I know this controllers are not bright ,but i want to use BOTH of them in real time as effectors instead of letting the dust settle down on them...9 knobs,4 encoders,4 jogs,and 6 faders can do some magic
Anybody else tried (and succeed ) to use both of these babies on the same pc,in the same time ?
This is the controller:
http://dl.dropbox.com/u/62817456/controller.jpg