All the instructions are online.
Under the screw was a little portal in which was another screw. This screw adjusts the vertical alignment of the rangefinder patch.
Not only did I remove something from my camera (that is too expensive) I moved something on the inside. All it takes is a 2mm allen wrench and you can alternately fix or screw up your camera.
Maybe a degree or two counterclockwise was all it took. Now the rangefinder patch is spot on.
The cover screw back on and all is well.
Even though I stopped drinking for a bit I needed a glass of something to calm my nerves after opening up a camera that is, again, too expensive.