Hi
First off, I must admit that I don't know anything about a CG Mount so this might be wrong.
Is your date and time inputted in the correct format? especially date, is it required to be entered in the American format ie mm/dd/yy? is time required in UT format?
I only ask this as the Gemini is required in this format, maybe that is what is wrong !!!!!!!!!!!! only a guess. It is rather strange behaviour.
Cheers
JohnG