We have a service contract at a local college. I got a call one day from someone who said that their Mac IIsi was having a problem. Upon questioning him, he said that whenever he typed on the keyboard, the image on the monitor was shaking. All sorts of monitor problems ran through my mind. I asked him if it was only when he typed and he replied yes. Well, since it was a contract, I figured we’d better go see what was happening. My tech called me about ten minutes after arriving and reported that the problem was not the computer, but his desk. The desk vibrated every time he typed on his keyboard. I am still shaking my head on this one. The sad thing is that this guy has “Dr.” in front of his name and is a professor at a major college.