Thanks Ken.
Since I am pretty sure it was already close (from my previous efforts with the Synscan s/w and also with Align Master (I found it a bit hit and miss), I allowed the display of the celestial equator and meridian in Stellarium and just chose a star that looked like it would be a good candidate (Sirius).
I had good fortune with the first set of adjustments - in fact a 120second to and fro showed no deviation (but since I was using Sirius it was actually quite a fat bright streak so prob not the best candidate - certainly for the ISO I was using). Then clouds moved in and I didn't get to do the second set of adjustments
