Hi Agbart,
My direct e-mail address is :

bobby_hale@highend.com

In order to help you, I need the serial number of the orbital head. This will let me know what version you are using. High End Systems shipped two versions of the orbital head. The first version was designed by WWG and used mechanical switches for home positions and didn't have remote homing capabilities. The High End designed orbital head uses optical sensors for homing and does have remote homing capabilities.

The latest software for the HES designed Orbital head is:

Version Number: 2.9.12

Please e-mail me directly with any other questions. Thanks, Bobby