This is my first ever problem with my tractor. I was digging a shallow hole with my L4630 HST under low RPM and stalled out. I depressed the clutch and heard the familiar click and turned the key and got nothing. The headlights seemed to dim very slightly, but no sound . The LCD message center correctly prompted me to depress clutch, when I did, it flashed alternating between "M" and "Neutral". Wondering if I didn't have the gear selector properly positioned, I moved the selector to the other gears, and got "H" or "L" alternating with "Neutral". It was dark out and away from the garage, so I didn't have the opportunity to make any visual inspection. The first thing on my own mental checklist was to check the starter wire and battery ground wire. Do these Kubota's have a Neutral Safety Switch like cars do? I had one go bad years ago and the results were similar. Maybe you folks could point me down a likely path to figure my problem? 