How to reconnect the windshield adjustment screw to the w/s bracket

I had to remove the adjustment screw on my 1997 R1100RS. When I screw it back in it bottoms out but does not actuate the adjustment. Schematics don't show anything t give me an idea of what's not working and mechanics I've talked to, including BMW shop, tell me to just screw it in. Doesn't work. Any ideas?