Help with control issues

HI,I'm hoping someone here can help me with a lot of issues I've been experiencing since changing from XP to W7 64.I'm using the proflight yoke, throttle and rudder with FS9. They performed flawlessly on my XP machine.I've since installed a new machine with W7 64 bits and FS9. The controllers are all calibrated in FSUIPC.However first thing I notice when taxiing : the nosewheel hardly reacts to the rudder, it's impossible to steer.Secondly immediately after take-off the plane (all planes) roll to the left. Pitch is extremely sensitive and almost impossible to control.I have to immediately engage autopilot otherwise the plane crashes for certain. I've tried updating drivers, calibrating in windows and FS and FSUIPC, tried changing slope and sensitivity but I can't see or feel any differences.Please help !Martin