I've setup the Arduberry on a model B. I first tried installing the Dexter software on stock Jessie but Sketch didn't see any Programmers. Checking forums, suggested using Raspbian for Robots so have installed, updated patches. The sketch programmers showed up so I configured via instructions. Compiled and uploaded sample blink code. This appeared successful but shortly afterward sketch froze. Rebooted the pi but from that point, during boot, I see the dexter text screen and last message is requesting hostname change., then screen goes blank like starting in X. After a few seconds, messages appear, indicating the Pi is shutting down. Same behavior with GUI or CLI.
I've removed the Arduberry, and Raspbian boots normally. I've tried the same card and Arduberry on another model B, same behavior. I also noticed before the Programmer crash with stock Raspbian and Arduberry installer and Raspbian for robots that the Model B is very sluggish with the Arduberry installed. Top showed no obvious process. Board is mounted per:
Please assist to troubleshoot further.