Trying to repair a 4" Horizontal CRT monitor.

[MadMan]

Using a magnet might gauss the screen and make it worse. Of course it can be degaussed, but that's a process. I would say that turning the yoke a bit would correct this, but if you note that the left side of the numbers is a near-perfect vertical line, for whatever reason, the image is being skewed up on the right side. If you tried two different monitors and two different video sources, perhaps something else is amiss, like bad cables or interference. Try the video source on a known-good tv or monitor.