 The Ctrl-Alt-Direction key sequence is supposed to be used for
changing your workspace. On my computer at work it changes the screen
orientation.
Ctrl-Alt-Up - right side up
Ctrl-Alt-Right - 90 degrees
Ctrl-Alt-Down - 180 degrees
Ctrl-Alt-Left - 270 degrees
(If that doesn’t work, try Ctrl-Shift-R)
This is a feature in Windows XP Tablet PC Edition. Which makes sense. But it looks like ATI
Intel copied the keystroke for the same “feature” in their video card
drivers. I can’t think of a good reason why I would need an always-on
keystroke for this on a desktop PC.
When creating a keystroke-mapped feature that only 1% of your
customers will want to use and the other 99%[1] are going to be
confused by, put in a menu option to disable it and have it disabled by
default.
To fix the issue press Ctrl-Alt-Up. To permanently fix the problem go to: Start >> Control Panel >> Display >> Settings >> Advanced Vista: Go to a vacant area of desktop, right click then select "Personalise"
Now click on "display settings" then, in the new window, on "Advanced
Settings"
From there it will depend on your video driver but look around for
some option like "Rotate Display" or Right click on empty part of desktop>>Select Graphic
Options>>Rotation>>Normal by: http://internetducttape.com/2006/08/01/stupid-windows-features-monitor-display-turns-sideways-or-upside-down/
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