And people, I know I may be asking too much, but learn how to write roman numbers. It's III, not 111!
Welcome and I'm sure all you're answers will be answered. And make sure your caps are off next time (the big button on the left hand corners of your keyboard and says "Caps Lock" on them. Also check the lights in the top right hand corner of your keyboard to see if your caps are on or off).
As for your problem, use the triangle thingy in the F5 screen. When you click on it and move it to the map, a line will come out from yout U-Boat (respresented by an "O" on the map). You can then plot a course by left clicking anywhere on the map (make sure you don't click on land or that your waypoint crosses land). When you are finished, press the right mouse button and off you go
