Peng, you don't understand. Murphy's law has a new corrolary: Any website being run by a farmer will go down during his harvest and planting time. I don't have the knowledge to do a site like this either. My site is an experiment only, being run on a computer put together from scraps, just to see if I could do it. Kind of like that remote swing hopper in the videos, only that makes a lot more sense for an old dirt farmer to be messing with. The vids these guys are talking about are of my D21 on a 13" auger. Swing hopper is hydraulicly powered and controlled by a key-fob remote that I carry with me so I don't have to climb in and out of the tractor about a dozen times _ trip. Remote also turns the D21 on and off, and starts it. Apologize for the slow speed that the Gleaner is moving in the cutting clips. My son Wane is driving it and he babies it a bit more than the old man does. When I'm driving, that old Cummins really sits up and growls. Ed in Montana