Hi Roy,
In a message to Tom Walker you wrote:

 RW> 19 Jun 08 07:04, TOM WALKER wrote to ROY WITT:

 RW>>> That's all well and good, but the fact is, they have to compensate
 RW>>> for error in their navigation when using a compass. If they're using
 RW>>> a GPS, those lines are perfect for the purpose intended.

 TW>> Of course Roy. BUT the Compass is only for general steering.

 RW> I used it recently to locate North when I was looking for the North
 RW> Star.

i thought that was what the big dipper was for? ;)

Bye bye!
  mark

 * SeM. 2.26  * Oh never mind!