I have a Multiple Scan 720 monitor and have been told that I may need to change the DDC setting. What is the DDC setting and when would I need to change it.

You can change the Multiple Scan 720 Display's DDC setting by using the On-Screen Display controls (described at the end of this article).

Most Macintosh computer models do not support DDC, so the default DDC setting on the display is OFF. However, you may want to change the DDC setting if you are using the Multiple Scan 720 display with the following computers and video cards:

• Power Macintosh 9600 -- set DDC to 1/2B.
• Power Macintosh G3 Tower, Desktop, All-In-One -- set DDC to 1/2B.
• IMS (or IX) Twin Turbo video card -- set DDC to 1/2B.
• ATI XCLAIM graphics card -- set DDC to 1/2B.
• Other video card -- See the manual that came with the video card to learn which DDC setting is supported.
• IBM PC-compatible computer -- See the manual that came with the video card to learn which DDC setting is supported.

1. Press the button at the left bottom of the monitor's front panel ("Enter" button). The On-Screen Display window will appear.

Note : The On-Screen Display disappears after a number of seconds if you haven't turned the Select/Adjust knob or pressed the Enter button. If that happens, just press the Enter button again.

2. Rotate the Select/Adjust knob (located under the <> icon, slightly to the right of the Enter button). As you rotate the knob, the highlight on the Onscreen Display window moves around the edge of the window, from icon to icon, and the screen display changes. When the "i" icon is highlighted and the screen says "Information," stop rotating the knob.

3. Press the Enter button to select Information. The words "Mode," "Absence," and "DDC" will appear. Rotate the Select/Adjust knob until DDC is highlighted, then press the Enter button. The DDC Option window appears.

4. With the DDC Option window displayed, rotate the Select/Adjust knob until the correct DDC option is highlighted. Then press the Enter button to accept the selection.

IMPORTANT : After you have reset the DDC control, turn the monitor off and then on again by pressing the power button at the lower right corner of the monitor's front panel, then restart your computer. Doing this ensures that the new DDC setting is enabled.