In Win7, if you right-click on the background and pick Screen Resolution, you should get a dialog which has Orientation among the options, letting you pick Landscape or Portrait. This should make it easy to configure the way you want.
Introduction. The forebrain (proencephalon) is the largest part of the brain, most of which is cerebrum. Other important structures found in the forebrain include the thalamus, the hypothalamus and the limbic system.
the main portion of the brain, occupying the upper part of the cranial cavity; its two cerebral hemispheres, united by the corpus callosum, form the largest part of the central nervous system in humans. The term is sometimes extended to refer to the postembryonic forebrain and midbrain together or to the entire brain.