Tried to image a machine a machine (10.10.x, Casper 9.8) and when the machine reboots and goes into the "The imaging process is finishing installing software" screen, it sits there for a bit, and then that screen clears away and a popup window opens "A new network interface has been detected - The "Bluetooth PAN" network interface has not been setup yet....and it breaks out of the imaging process. Didn't have that problem yesterday when I was working on this, but today after updating to 9.8 I am.

