STK with two gamepads: a problem

Hi folks,
I have bought two "logitech dual action", but STK (on Mac) only recognize one when two are connected. The two gamepads works, but STK acts like they are the same ... What can I do?
Thank you!
I have bought two "logitech dual action", but STK (on Mac) only recognize one when two are connected. The two gamepads works, but STK acts like they are the same ... What can I do?
Thank you!