My 3 yr old nephew was playing a game on my pc when he called me and said look Well my taskbar was down the right side of my screen so everything is now running left to right instead of up and down and my mouse functions are all wrong ie move mouse left and it moves down,move down and it moves right etc etc Got the taskbar back but bar that the rest is all as mentioned above? Please help
Do you have an Nvidia card? It comes with a function called NVRotate that does exactly what you are describing. Go to the display settings in control panel, Settings tab, Advanced button and then the tab for your video card. Find the NVRotate in there are reset it to 0 degrees. It can also be done from the Nvidia Settings taskbar icon if you have that running.