I have a STi mounted on Orion ST80CFT with 2in diagonal on G11 Losmandy with Gemini 2. Main telescope is VRC10 Mallincam. I am new to astronomy but my friend working with me has more then 25 years experience, using the same guidance setup (except he has a Titan mount) and we can not find the problem. When we try to calibrate, CCDops deactivate Y+ and Y- relays every time. We have tried new cables, another STi camera, another computer, Windows XP, Windows 7, worm gears adjustments .Parameters in Gemini 2 are the same on both mounts. My graph result is a straight line instead of a X and I have zeros on Y- and Y+. What else could we do? Is it software or hardware issue?