[martinbrodeur]

Same experience here. Two MBox 3 Pro units in a row with a green light on the brick and no power to the box. The vendor said they would keep shipping me replacements, but would not test them to see if they had power prior to shipping. When the third one had the same problem I popped off the 4 rubber feet, unscrewed the four screws, slid the unit out, reseated the IDE-looking cable using a flathead screwdriver, plugged it in and watched the nice green and blue lights finally come on. FYI, I waited 30 minutes on hold with Avid before resorting to this. Thanks for the solution, Blue Moon guy!