Apple AppleVision monitors (OS 7.1) - Manual (Page 48)

Adjusting screen geometry
To adjust the height, width, position, pincushion, rotation, keystone, or
parallelogram settings, follow these steps:
1 Open the Monitors & Sound control panel, then click the Geometry button.
2 Click the geometry setting you want to adjust.
3 Move the pointer over the picture of the monitor.
The shape of the pointer changes when it is over the picture.
4 Hold down the mouse button, and move the pointer to adjust the picture.
For example, to adjust the height of the screen, hold down the mouse button
and move the top and bottom edges of the picture of the monitor.
5 Fine-tune your setting by clicking the position buttons.
48 Chapter 6
Select a geometry
setting.
Use the mouse to
adjust the picture.
Fine-tune
your changes.