To get DOOM v1.0 to run properly with both music and digitized sound effects
with the Gravis Ultrasound:  2 steps.

1)  Set your ULTRASND environment variable, and use GF1 IRQ less than 9

    example:  SET ULTRASND=220,1,1,7,5
                                   |_______ GF1 IRQ

    Make sure your ULTRADIR environment variable is still set.

    example:  SET ULTRADIR=C:\ULTRASND

2)  Copy ULTRAMID.INI into your DOOM directory and rename it to DMXGUS.INI
    (or find and use the DMXGUS.INI file already on epas)

Run the setup program and select the Ultrasound for both sfx and music.
Now run DOOM!
