I am new to forum......need advise regarding restarting problem with B3300 SU.....since purchasing tractor new in 2011 have had occasional problems with tractor cutting off when raising up from seat with tractor still running......the PTO lever is in off position when this occurs.....when I try turn the key to restart tractor the engine will not turn over....however the dash does display all the red electronic symbols. The weird thing is this problem does not occur every time I have tractor running and get off seat.....but when it does it is very aggravating as it can take several minutes before I can get tractor restarted. I originally thought the problem was being caused by accidentally putting my foot either on the forward or reverse pedal when turning the key to start .....which assume if that happens the tractor would not start due to safety feature (OPC safety device?). I had dealer look at tractor when this originally started happening (which was shortly after purchasing the tractor new) and they could not find anything wrong ......again this problem does not occur every time I start the tractor. Any body experienced a similar problem or any idea on what may be causing this? Thanks in advance for any help.