OP was reading text on an old Cathode Ray Tube monitor. It broke such that, instead of being spread throughout the screen, all of it was squished vertically into a single horizontal line. However, different parts of the line are written at different times, so if you vibrate your head, different parts will land at different parts of your eye.
Sadly blowing raspberries no longer works for debugging new fangled flat panel displays. On account of the ball bearings.
You forgot to mention the pixel return springs but you seem like a nice guy so I'll let it slide.
OP is probably using something like a retroencabulator where rather than the power being generated by the relative motion of conductors and fluxes, it’s produced by the modial interaction of magneto-reluctance and capacitive diractance. The original machine had a base plate of prefabulated amulite, surmounted by a malleable logarithmic casing in such a way that the two spurving bearings were in a direct line with the panametric fan. Thus no pixel return springs are necessary in this configuration.