Screen image inversion

[Dumb Bunny]

I have a friend who accidentally brushed her fingers across the keyboard and
found to her horror that the screen image had turned upside down.
Obviously she had activated a "hotkey" combination and I am curious to know
what this could be, so that I can warn others to watch out!

Anybody know the answer to this one?????????

 

[Box134]

There's nothing in XP which does this. Some video cards have helper software
which does things like this. Without knowing what video card your friend
has, it's hard to give a definitive answer.

 

[CWatters]

See this thread for some possible suggestions including viruses that do this
silly trick ...

http://hardwareanalysis.com/content/topic/15031/

 

[Alex Nichol]

I have a friend who accidentally brushed her fingers across the keyboard and
found to her horror that the screen image had turned upside down.
Obviously she had activated a "hotkey" combination and I am curious to know
what this could be, so that I can warn others to watch out!

Probably one of the nVidia video cards that has a facility in the driver
to rotate the display through 90 deg at a time, for use with monitors
that can swivel to Portrait mode. Control Panel - Display - Settings,
Click Advanced and look for a relevant page there