razghost

So I just got this aircraft a couple of days ago and have found after take off the plane will bank on it's own, so much in fact that just a minute after take off my heading has already changed by at least 70'. I have tried multiple airframes, uninstalled and reinstalled both aircraft and x-plane. I've gone through the checklist in the x1000 so I am sure I haven't missed anything and all the controls I have set are good. Also fuel is good, it banks to the left regardless of what tank I've been using since engine start. Only thing that seems to cure it a bit is making the banking trim to near enough the max. Any help would be appreciated thanks