In order to get a better understanding of displays, how
they work and how they can be checked, there is a test
program developed by Time/Slice systems named CRT_AT.EXE

This program is a FREEWARE software and can freely be
used and copied (see the included HELP for more detailed
information).

The program includes four parts:

-  Monitor setup, contains five screens that provide
   tools to check if the video display tube's magnet and
   electronics are all in alignment.

-  Test, three screens used to see if the monitor
   performs up to its specifications.

-  Appendices, containing general information about this
   tool, about monitors and about the components of a
   monitor.

-  A powerful help which contains information and
   pictures to explain the usage of the tool.