I had a misbehaving Apple Multiple Scan 17 that required abusive treatment when the video got stupid. I finally decided to apply my considerable experience in fixing things to track down the intermittent using various long and highly insulated tools to mechanically probe while running the thing open and staring the red wire of death in the face. Well, I NEVER found the thing: when there are a jillion tiny parts close together everything feels the slightest PC board flexing. Hours later in a moment of clarity I realized this thing was calling to be recycled. So I Freecycled an excellently working Apple Multiple Scan 1705 Display, marked the old one "Known Bad" and shipped it off to the local computer recycling center.