Right after I checked all my connections that I wired and had the computer all ready, I put it in the cabinet to play test.  I also put my 17" PC monitor in it.  The friction seemed to hold the monitor...
Well, a minute or so later, the monitor was sitting on the basement floor.  Luckily, it fell into a box that was sitting there, a box full of newspaper, so it didn't actually hit the concrete floor.  The screen got a little scratched, but it still works great!  It's still in there right now, been too busy playing it to put in my 21" monitor I bought for it.