http://forums.techguy.org/tech-tips-tricks/336002-windows-xp-flipping-screen-upside.html
Windows XP: Flipping the screen upside down and back again
Once, at University, someone had
flipped the
screens of all the public computers (running on Windows XP) of the English
Department
upside down. The wallpaper, desk
top icons, fonts, mouse-cursor and even the start-up
screen...everything was displayed or moved
upside down. People could not check out their e-mails or surf or do anything.
To reverse the
upside down screen mode, press ctrl, alt and the up arrow (arrows console) at the same time; the
screen will probably go blank. Turn off the moni
tor, turn it on again and the display will be normal again. If you possess a sense of humour or are antisocial, press ctrl, alt and the
down arrow simultaneously, turn off the moni
tor, turn it on again and everyone (excluding the culprit) will be desperate -->
upside down! Works for Windows XP Home and Prof.
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