My Doblo jtd 2005 keeps cutting out when I start off,after it's been on road on a run -its ok, but then when I stop, and start off again it plays up. It is a magician in that I cannot put it down to one exact sequence. For example I started up tonight and it cut out one hundred yards up the road- then a further hundred yards- I had to rev it very highly in order to get away again ( I had hazzard lights on in middle of the road) Then when I came to a halt I was ok till i put it in reverse (it usually cuts out when I put it in reverse- but ok when I put it in first (with clutch in). I drove home (40 mile drive) and as usual -no problems once on a run. It always plays up from a standing start (except once its warmed up and I've been driving for more than 10 minutes)When it cuts out all lights go out and the whole dashboard flashes off. I added a new earth cable as advised for battery to engine (negative) Any ideas?