Date: Wed, 14 Dec 94 10:43:00 -0500
From: dj AT stealth DOT ctron DOT com (DJ Delorie)
To: A DOT APPLEYARD AT fs1 DOT mt DOT umist DOT ac DOT uk
Cc: DJGPP AT SUN DOT SOE DOT CLARKSON DOT EDU
Subject: Re: New PC: driver or screen funny when in Gnu C


The bank flipping isn't happening, so you are always writing to the
first 64K of video memory.  You need to either use GR or GRX to handle
the page flipping for you, or manually program your VGA card.
Selecting the mode with GRX (heck, selecting any mode) enables the
automatic page flipping.