Topic: Mac Pro Will Not Start Up With Babyface USB Connected

Since updating to OS 10.7 Lion my Mac Pro will not start up with the Babyface connected. The screen will stay gray, but the Apple logo will not appear until I unplug the Babyface's USB cable. I can then plug the Babyface back in after the computer starts and everything works
I am currently running the latest firmware and software updates for the Babyface and the Mac Pro is 10.7.2.
Please advise