Simon Proctor

Hi Guys, I have a Lexus IS200 (X 2000), a couple of years ago I replaced the track rods and ends as I found they were seized during a steering geometry. Since replacing them and having the steering geometry done at my local dealer I seem to have had a issue with the steering is pulling both ways when driving in a straight line. I have checked tyre pressures and they are all ok, I found that both ball joints had play so have replaced them but still have the feeling of it pulling, so much that I feel the car is unsafe to drive. Does any one have any ideas as took the car of the road 2 years ago as my local dealer couldnt find a problem. I would love to be able to get the car back on the road so any help would be great.