I decided to pull out the old mac plus which hadn't been used in about twenty years. It turned on fine and I have all of the floppy disks required for it to run. However, when I turned on the computer the screen was very skinny and placed at the center of the screen. I couldn't find much on google except that in one instance, somebody had the same problem, and they solved it by physically washing out the hard drive in water and taking away the rust. Might this work?