25
Correcting Video Display Problems
If the system’s video display is black, not synchronized, or distorted after you restart the
system, you may have a video configuration problem.
Do not press
CTRL
+
ALT
+
DEL
to log on to the Windows NT operating system. Instead, try to
correct the problem by using the Last Known Good option to return the system to the last
known good configuration recorded by Windows NT.
To use the Last Known Good option:
1. Power down and restart the system.
2. Press the space bar at the following prompt:
Press space bar NOW to invoke the Last Known Good Menu
If using the Last Known Good option fails to correct the video display problems, you can
obtain a functional video resolution by restarting the system in VGA mode.
To restart the system in VGA mode:
1. Power down and restart the system.
2. At the boot screen, select the VGA mode option.
After logging on to Windows NT in VGA mode, check for the following common
configuration problems and solutions:
u
A multi-sync monitor is selected, but a graphics display device with different video
timings (such as an Intergraph InterVue monitor) is connected to the system. Select the
appropriate monitor type as described previously.
u
The monitor selection is inappropriate for the monitor connected to the system. Select a
new monitor.
u
There is not enough video display memory to support the selected graphics resolution and
color depth. Install and reconfigure the video display to use a lower resolution and color
depth.
Restart the system and, when the boot screen displays, select the appropriate non-VGA
version of the operating system to use the reconfigured video display driver.
If problems persist, contact the Customer Response Center for help.
