no problem nolen.

just One thing, All jailB* examples don't define the z-axis but instead they work around this problem using various bits of coding whereas Jobe defines the 3rd axis and then uses trignometry to locate the position of the point on the plane. So dependin on what you choose to do, you may or may not have to adapt his code to suit this file. (coz in this you dont have a z axis, and you are using x and y to sort out positioning).