Hi CMTrantzas,
Based on what you shared with us, it sounds like JP1 is connected to +3.3V, when it needs to be connected to the +5V setting. For more information on this part of the setup process, check out the pictures under Step #3 of the Wiki Guide's Physical Setup section:
http://wiki.analog.com/resources/eval/user-guides/inertial-mems/imu/adis1636x-adisusb#physical_setup
If this solves the problem for you, can you mark this post with the Correct Answer designation? Our system administrators would greatly appreciate it. If not, let me know and we can help identify the next thing to look at.
I hope that helps!
Best,
NevadaMark