I don't know if this is too low tech or not, but I simply screwed a 2x4 on the shelf right behind the monitor base. Unless your monitor is at a severe angle, it will be fine. Having said that, I will have to remove the monitor if I ever want to move the cab to another room or up the stairs or something. No biggie for me since the back of the cab is open, don't know about your situation. But if you're looking for a quick fix, it worked for me.