Hi there.. Well im starting to use the ground2k4, and i have the beginners tutorial, i had folowed everething, but when you select a new project, then you give the name to it, then you choose the background image, then you have to choose the NW/SE points, well right here is were i have problems, i put the latitude and longitude in both of the points NW/SE, but when i put ok, it give a message that says "Error: (507) points to be verified". What can i do?? ... can someone help me, or where can i find a more detailed tutorial??.. Please help me... Thank you.