Similar story here
back in the 80s I had a (very advanced!) EGA monitor on my desk connected to a Compaq 386 machine.
I remember enjoying the colour pattern on the screen - which had originally been a solid blue - when I realised that the paper-clip holder on top of the monitor was magnetic.
I moved the holder and the pretty colour pattern disappeared. Ah, the joys of CRTs, eh?
Biting the hand that feeds IT
