Sorry for the delay, here is my new geometry printout:
http://img525.imageshack.us/img525/3451/001zam.jpg
As i say, after turning a corner, if you let the wheel go it will come to rest at either 5 o'clock or 7 o'clock, depending obviously on which way you're turning. Or if going in a straight line, if you touch the wheel down just a little, it will stay in that position, moving you constantly in that direction. Hope that makes sense?
I have heard about an indication to ball joints? One was replaced for the MOT. if you refer back to my previous settings before i changed them the first time, I had just picked the car up, and for the short time i drove it to the MOT station all seemed well, from what i can remember!!
Its starting to become a pain, because you always seem to be overcompensating when trying to keep it straight, as you dont have that centre dead weight as an aid.