I am having some problems with the AI trainz. First I can't find the Decouple command in the driver setup menu. It is in the Driver Commands list and is checked, but it doesn't show up in the Driver Setup commands. Second, I am having no luck with the ISS Invisible Speed Signals. I finally got 2 of them to work, but the third one didn't. Kind of bad when the first one in my yard was set to 10 MPH, which seemed to work, but when the consist left the yard to it's first industry it went 10 MPH all the way down the main line. I did have another speed signal on the main line to increase the speed, but it didn't work. Must be doing something wrong. Third, I have the coal mine industry on my route and when I drive the consist myself it will load 15 cars, but when I send it with AI mode, it will only load 4 cars. I have tried different cars and increased the production of the coal mine, but to no avail. I'm wondering if maybe the track through the mine chutes is too short, as in AI the train stops for the switch at the juntion leaving the mine to the main line to be set and I think it thinks the loading is finished when it stops. Would a longer line through the mine make a difference...Any help here will be greatly appreciated...Thanks.....