Essentially my lovely younger sister has touched somewhat on my computer, and she is not able to keep in mind that what she had done in that. Basically my screen looks to have moved 90 degrees clockwise, so the desktop bar is appearing on the side of the screen, and the desktop picture is appearing to the down side. So in order to operate it I have to turn my head upside down which is really inconvenient for me. So does anybody have any solution related to this, so that it will come to the normal view? Help will be really appreciated.