If he is using a Cirrus Logic video card, (or a card that uses their chipset),
there was a DOS configuration utility that set things like that including
the video mode etc. IIRC, it was called SSmode or CLmode.
Good luck.  Let me know if you want me to look for an old copy I used to use...

                                                           Rick Glazier

From: "Peter Shkabara" <[log in to unmask]>
> How does one change the refresh rate of the
> monitor when running true DOS - I think he has version 6.22?

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