Transparency
The Transparency Slider controls the transparency of icons and other Overlays drawn over the background map, such as the Toolbar, and any navigation instruction boxes. Increasing transparency will make it easier to see the background map, but may interfere with the legibility of the Overlays. Decreasing transparency clarifies Overlays but it also obscures underlying map information.
To increase transparency, press and drag the button on the slider bar to the right. To decrease it, press and drag the button to the left.
Contrast
The Contrast Slider controls the graphical contrast between screen col- ors. Like brightness, contrast must be balanced to individual tastes and lighting conditions. Use the slider bar to adjust it to your preference.
To increase your screen's contrast, press and drag the button on the slider bar to the right. To decrease it, press and drag the button to the left.
Calibrate Screen
The Calibrate Screen command is used to correct any differences be- tween the location you press on the touch screen and the location the iWAY thinks you pressed. If you find that the iWAY isn't responding perfectly to your touch screen input, run the calibrate screen command.
From the Screen Setup Menu, choose CALIBRATE SCREEN. Another screen will appear on your iWAY, similar to the one in the following image, with a small target icon somewhere on the screen. A test message asks you to press the center of the target. When you do, a new target will appear elsewhere on the screen.
The Touch Screen Calibration menu.
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