You say it needs to be adjustable for your clients who may be behind you. So once again, dentistry has the answer (actually I just wanted to kick you when you are down again.) Leave the screen static but provide adjustable chairs.

Your clients will love them as long as you don't make any noises that sound like a drill. I mean, come on, who doesn't play with the buttons on the dentist chair when he leaves the room.

With great power comes Awesome irresponsibility.