Technical data

Troubleshooting
4-27
DIGITAL PC 3500/5510
Problem Possible Cause Action
Distorted, rolling, or
flickering screen display,
or wrong/uneven color.
Monitor incorrectly adjusted. Adjust accordingly.
Monitor signal cable
incorrectly installed.
Straighten any bent connector pins and then
reconnect.
Wrong refresh rate set in
Windows 95 or Windows
NT Workstation.
If using Windows 95, reboot the computer in
safe mode and then correct the refresh rate
according to the documentation supplied with
the computer. If using Windows NT
Workstation, select VGA mode to boot at a
default rate and then correct the refresh rate.
Color monitor displaying
monochrome.
Computer was turned on
before the monitor was
turned on.
Turn off the computer, turn on the monitor,
then turn the computer back on.
Monitor fails to switch to
high-resolution mode.
Appropriate high-resolution
video drivers are not
installed or incorrectly
installed.
Correctly install all appropriate high-resolution
video drivers. Refer to the documentation
supplied with the monitor.
Monitor display not
centered while loading
Windows video drivers.
Monitor type incorrectly set. Set the correct monitor type.
Monitor display
disappears.
Screen display sized
incorrectly.
Correctly size screen display.