I need to flip the screen of Mac X 10.4 either vertically or horizontally. I should emphasis that I do not want to rotate 180 degree I want to have mirrored output. Is there any way of driving a Mac's display as a mirror image (and not simply rotated)?
Several answers have jumped on rotation, so please don't confuse rotation with actual flipping. A mirror image (either vertical or horizontal) distorts text in a similar manner to taking a sheet of nearly transparent paper and literally flipping it so you see the words from behind the paper.
Here is an illustration of rotation (not what this question seeks) : rotate display 90, 180 or 270 degrees.
What I seek is horizontal display flip.