Yes, I am using windows 7 pro 64 bit. This freezing only occurs when I have the phidgets library open. To be precise if i call CPhidget_Open and then plug in the device it freezes the system. However if I plug the device in and then open the phidgets library all is fine and runs smoothly.
Also, if i then unplug the device and plug the device back in, it freezes the system.