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TOPIC
I have an Apple Studio Display 15" LCD that I just connected to my Power Macintosh CPU and noticed that there are dark bars running vertically down the screen when I started the computer. Is this a problem with my computer or my display?
DISCUSSION
The dark bars that you are seeing are due to the tracking settings which need to be adjusted. To adjust the tracking for the Apple Studio Display you will need to install the Apple Display Software which shipped on a CD with your display or install Apple Displays 1.6 software and the AppleVision 1.6.1 extension available at Apple Software Updates
< http://www.info.apple.com/swupdates > .
Adjusting Tracking
1) Install the Apple Display software.
2) Either select the control button on the bottom of the display or select the Monitors & Sound control panel from the Apple menu.
3) If using the control button, select the course tracking icon or the fine tracking icon.
4) In the Monitors & Sound control panel, select Flat Panel.
Figure 1 , Monitors & Sound control panel
5) Click Tracking and adjust the tracking until the dark bars are not visible or until the screen appears smooth. You will need to adjust the Coarse adjustment first and then the Fine adjustment.
Figure 2 , Tracking window