I was looking for this information also. Thanks for the post. But i am still having a hard time bringing the map up with the PRT SCR button. I hit it and nothing happens. One of the posts above said to hit the FN button first. What is the FN button? I think this is great to be able to mark and track the deer you see and record information. Thanks a million! Once i get the FN button thing i think i will be ready to roll.