| MadSci Network: Computer Science |
Hi, Rosie! What the kids inadvertently did was to magnetize the computer screen. It needs to be "degaussed", i.e., demagnetized. The colors are messed up because the magnetism is pulling the monitor's red, green, and blue electron beams away from where they're supposed to be. Most newer monitors have built-in degaussing ability that's activated by either on-screen controls or a button somewhere on the monitor. It will either be labeled "degauss" or perhaps be labeled by a horseshoe-magnet symbol. After the monitor has been turned on for a minute, press the button or select the appropriate on-screen menu item. The monitor picture will distort wildly for a few seconds, then return to normal. Repeat if the first degaussing doesn't work completely. If the monitor does not have built-in degaussing, you'll need to purchase a hand-held degausser. These cost $10 or $20 at R*dio Sh*ck. They're basically a coil of wire with a handle. You plug one of these in, move it slowly toward the screen, move it around a bit (small circular motions, if I recall), move it away slowly, and unplug it. It comes with directions. Good luck! Aaron
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