He's got the SkySensor in LX2000 Emulation mode. When the cable is plugged
in, it doesn't do anything.

Hi:

Which program are you using on the computer end? Are you sure you've got com
ports, etc. correctly configured?

Peace,
Rod Mollise
Author of _Choosing and Using a Schmidt Cassegrain Telescope_
Like SCTs and MCTs?
Check-out sct-user, the mailing list for CAT fanciers!
Goto http://members.aol.com/RMOLLISE/index.html