Mac OS X 10.6: Switching your keyboard to Dvorak layout
If you have difficulty using your computer’s standard QWERTY keyboard, you can switch the keyboard to Dvorak layout, which optimizes key layout for typing comfort and ease of use.
To use the Dvorak keyboard layout:
Choose Apple menu > System Preferences, click Language & Text, and then click Input Sources.
Scroll down the alphabetical list on the left to select one of the Dvorak options.
If you select the Dvorak - Qwerty ⌘ option, the keyboard changes to QWERTY when you hold down the Command key (⌘).
Select the “Show Input menu in menu bar” checkbox, which appears below the list.
Choose Input menu > [Dvorak option] to switch to the Dvorak layout.
The Input menu appears in the upper-right corner of the menu bar at the top of your computer screen. Its icon is usually the flag of the country that corresponds to the input source you have chosen in Language & Text preferences. For example, if you chose U.S., the American flag is the icon for the Input menu. When you switch to a Dvorak keyboard, the icon changes accordingly.
You can view the selected Dvorak layout on your computer screen by using Keyboard Viewer.
In Keyboard preferences, select the “Show Keyboard & Character Viewer in menu bar” checkbox. Then in the Input menu in the upper-right corner of the menu bar at the top of your computer screen, choose Show Keyboard Viewer.