My new x758 has worked great for the first 40 hours. But now, the blades cut off while mowing for no reason. The past 3 times Iíve tried to mow my grass, the blades have cut off and I borrow a neighborís push mower which sucks. The grass isnít high, Iím not getting off the chair, not backing up without RIO pressed, etc. I can typically re-engage the blades but they cut off 5 seconds later. So to cut one circle around my house takes about 15 re-engagements. Iíve taken the deck off and rode with the PTO engaged and it still cuts off. The dash doesnít kick off any codes and the PTO light just flashes. Took it to the dealer and of course they canít reproduce it. Anybody experienced this or can think of why this could be happening?