[ilife13 (David)]

I am hoping somebody can give me some advice here, this is my first thread.
I purchased a Vixen GPD2 mount with the SkySensor 2000 hand control through the IIS classified adds some time ago. Everything was working well initially and was aligning the scope with good accuracy. After lots of cloudy weather and an overseas holiday it was some months when I finally got my scope out again and I took it into the country. However since my last session, the battery in the hand controller died and I had to replace it. No big deal as I am fairly handy as the battery requires soldering in place (correct battery Purchased). I reset the time, location and time zone in the controller (double and quadruple checked since) however, when I do a reference star the scope points absolutely no where near the selected star (40+ Deg off). Even manually slewing to the star and pressing "align" (for the 3 seconds until it beeps to accept the star) is of no help as when I chose a second reference star it will go in the opposite direction to the second selected star. Is there something obvious I am missing or other additional information that needs to be reset in the hand controller?
I have been through the SS2K user guide and checked everything I can but there are some settings that I do not understand and are not explained in the manual. My current set-up is Orion ED80T CF and Vixen VC200L (not that this will make any difference to the solution).
Any help or advice would be greatly appreciated.

David