Hi,
Having the same problem the box would't turn on at all. Just managed to get through to technical support after two days of trying.
You need to turn the box off at the mains and leave for 10 seconds, then turn back on at mains, continuously hold the standby button on the box in until you get a solid amber light, now you need to press the up, down, left, and right arrow keys in that order, then the standby button on the control and then dtr button. It can take up to about 9-10 times of trying apparently, but worked for me after 3 attempts. Remember after each attempt you must turn the box off at the mains. Hope this helps.
Karly, May 2009