turn problem

Hi all, I was wondering if you guys could help me out. I have a couple of aircraft with turn problems. Say for instance, i'm in a right bank to intercept. When i roll out on course, the aircraft slides right side ways requiring me to roll left to re-intercept. Same thing when turning left, it slides side ways left momentarily. This is a pain when flying down the loc. Is there a setting in the CFG or Airfile that could prevent this?

Thanks