Rob,
Glad to hear the driver installs and runs.
PHD2 should be handling the rotation and guiding properly after the rotation so we'll need to investigate to see why it is not working for you. Please try the following:
- calibrate PHD2
- guide for a few guider frames
- stop guiding
- rotate by some amount, approximately some multiple of 90 degrees (+/- 90 degrees or 180 degrees) to keep the analysis simple
- start guiding again
if you see runaway guiding, repeat the steps 1-5 with the "Reverse sign of angle" option checked. If you still see runaway guiding, send me your PHD2 guide log and debug log.
Andy