Thanks for your prompt & extensive reply.
I checked the wheels with the 'shimmy shake' but they're all fine. I knew this, because when the car was calibrated well, it drove like new; turns, accelerating, all was just fine. Until you shut down the car and ignite it again; that's when the problems are coming in. During ignition, the car's getting some 'new info' I guess and starts to reset it's wheels and then all driving accuracy is gone.
Today I drove a few miles and the car's steering wheel didn't automatically turn back to it's 12 o' clock position! It more or less stayed in it's last turning position. In the end I'm getting quite desperate: every turn the car makes is a complete mistreatment.
Edit: The missing fuse pins issue was solved a time ago
on this great forum.