Update
Updating database... Please wait.
Monday 7 May 2018 at 22:09
Quoted from BarryJ:This is the fix.
With a flat head screwdriver and a small rubber mallet.
Hit the flat rail right above the closest screw at the top.
I'd lay something across the playfield, pad, newspaper, etc. So you don't accidentally slip and damage the playfield while doing this.
LTG : )
Source: http://pinside.com/pinball/forum/topic/american-pinball-houdini-thread/page/73#post-4384609