Aircraft trim problems

I have a bad drift problem that I can not trim out. I tried trimming from my yoke and the number pad to no avail.
I tried using auto heading to get the plane straight and level and then disengaged the autopilot but I still have a bad drift.
The problem seems to be with all of my airplanes.
This is a new load after a HDD change. Am thinking about uninstalling and reinstalling the program before I get all of my goodies loaded in.
Any suggestions would be appreciated.
I tried using auto heading to get the plane straight and level and then disengaged the autopilot but I still have a bad drift.
The problem seems to be with all of my airplanes.
This is a new load after a HDD change. Am thinking about uninstalling and reinstalling the program before I get all of my goodies loaded in.
Any suggestions would be appreciated.