No, you are on the wrong way. Don't delete anything from registry or re install pinballx. You will get into more troubles
Just follow my long post which I posted my moning
I finally got around to replacing the Tankstick with the Tankstick Max. The spinners they used are incredible. I played Tempest and Tac-Scan for over an hour the other night. I can't wait to get Arkanoid set right. :)