Figure 21. Display properties in Windows NT 4.0
6.To change the colour depth, click the arrow next to Color palette and select the colour depth you want.
7.To change the resolution, click and drag the knob under the Screen area until you select the resolution you want.
8.Click the OK button.
9.Follow the prompts that appear on the screen.
Changing the Video Driver
It is possible that you may want to update your video driver or that your installed video driver has become corrupt so that the display is unusable.
88 Video Features and Configuration