T. Waters said:
Your monitor's manual may mention changing the screen orientation.
You're just not looking in the right place. In the Display applet there
will be an Advanced button or tab (sorry, am not at a Windows machine
right now) that will then allow you to click on the Adapter tab. The
Adapter properties will have a place to set screen rotation. This is
what you want. If you have an Nvidia card, there might even be a
separate Control Panel applet for it.
Malke