if its the same thing I had on a TV of mine (had a pink right side of screen when it arrived from the shop), there is a gadget that will undo this (some sort of wand) but I dont know what its called...
Hmmm, wonder if I can get a valid page fault ???
these invalid ones are far too commonplace...
Most monitors have it built-in. It works each time you turn on your monitor. Usually you can also degauss with the push of a button or a selection in the monitor's menu.
If you don't have a built-in degausser you can buy them.
There's a homebrew method too but use at your own risk. Run a high current electric motor near the CRT. An electric drill will do but not cordless drill. (Don't use the drill bit, LOL!) I use a box fan. Move the motor around, near the face of the screen, as it runs. If it shakes the image then you know the motor is powerful enough. In a minute or two it will clear the distortion.
Don't remember where I learned this method but I first used it when a family member once left an automotive loud speaker (one of the 22 ounce magnet jobs) on top of a television an old television. It sat there for probably months. One day we needed that old television but there was a nice green and pink distortion on one third of the screen. I remembered the homebrew degausser which worked like a charm.
<b>56K, slow and steady does not win the race on internet!</b>