You could try drift alignment...
Article here:
http://www.iceinspace.com.au/index.p...63,405,0,0,1,0
From what I understand, (and I may be wrong... I havent got mine aligned properly yet) If the star is drifting north, you have your altitude set too low..
As I said I may be wrong... the article has the answers!
Hope you have more luck with it than I've had..
Alex.