I have run into the problem where I landed on the Mun in a Kethane rich area (as clearly displayed by the map overlay) and tried mining; however, nothing is coming out. I have 3 small drills, a Kethane tank with a capacity of 4000 units, and more than enough electrical charge. I've checked the map multiple times to confirm that I am on top of a Kethane deposit. I've restarted the game, as well without any luck. I'm not using any mods other than the Kethane mod, so I don't know what the problem is. If anyone could help, it'd be much appreciated.