I pressed a button that turned the display sideways
136005
ctrl alt and the UP arrow
312192
Supposedly pressing ctrl + alt + one of the arrow keys will rotate your screen like that. It doesn't work for me, but it's worth a shot.
218288
im not sure but try the undo button at the top, it may help.
617118
i think you brought broke the lcd you might have to replace it
158415
if not with the first answer , then try to turn upside down the mouse pad , if not chk for spyware
254632
jus click on it and hold it down..\nand drag it to where you want.
536232
Check out the display properties in control panel.  Some software lets you change the orientation of the screen image.  Otherwise, download any updates and do a thorough virus scan.  It sounds to me like a display properties, or joke program problem....\n\n-Zach
233895
well my living room was filled with guests n in a hurry to switch off the tv i frantically pressed all the buttons on the remote n when it switched off i wondered aloud how was i able to do it coz my finger was at the wrong button when actually it had been my sister who had finally unplugged the tv after having waited for me to switch it off thru the remote
498958
Select the object or image and then press the modify menu, transform, flip horizontal.\n\nso in the menu bar - Modify > Transform > Flip Horizontal.\n\nWould have been much easier if it said mirror :P I just figured that one out for you. I might muck around with it now. Hope this helps.
667345
Turn it on it's side.
291687
you may need to re-install the display driver.
398486
damn red button moved! ah well...i always knew im a idiot so i won't let it get me down
84013
press Ctrl+Alt+Up arrow.\nYour screen will come normally
166133
The keyboard (I cheated)
366253
Try adjusting your display settings in Control Panel.
163382
Press F5 or refresh button.
363562
To revert to a right-side up display, hold down the CTRL, ALT and UP (arrow) keys.