Apple PC Compatibility Card 7-inch card - Manual (Page 190)

Troubleshooting
Using the diagnostics utility
You can view and test any installed graphics mode at any supported
resolution and color depth by running the Install program from the DOS
prompt or by running a diagnostics program called M64DIAG.EXE.
Note: Do not run M64DIAG.EXE in a windowed or full-screen DOS box.
Any time you suspect there is a problem, especially during installation,
you should run the above tests. The information provided in the next
section, “Solutions and Explanations for Problems,” will enable you to
solve most problems.
To run the diagnostics utility, follow these steps:
1 Insert the PC Utilities CD into the CD-ROM drive and type:
CD E:\VIDEO\DRIVERS\INSTALL
INSTALL
A menu appears.
2 Select Diagnostics from the menu.
3 Select Test Graphics Adapter.
4 Select the test you wish to run.
You can select either VGA Tests or Accelerator Tests. Problems and solutions
for some common errors found by the test program are provided in the next
section, “Solutions and Explanations for Problems.”
183 Configuring Video Software