I am usually asking for help on Pinside but I just thought I would post a fix to what I suspect is a common problem. I was having problems with the upper wire rail above the red targets coming loose on my Black knight. I used Gorilla glue to fix it. Just a small amount is needed as it expands when curing. Think of "Great Stuff" spray foam but denser. Works great and I suspect is a good fix for any of the wire rails on games that push into small holes with no threads.