🚀 go-pugleaf

I have downloaded the GCC binaries and GRX graphics libraries for MSDOS/386
systems from omnigate.clarkson.edu.  This graphics library does not work on
my standard VGA system anymore, whereas a previous version of the same software
from about a year ago worked.  The problem can be described as follows:

When I compile and run the test program supplied with the grx library, test.c, it
does not switch modes and no graphics operations appear to be performed.  If I run
it with arguments, such as

        go32 test 320 200

it quits with the following error:

        GrSetMode:  unknown adapter type in driver

I have the go32 variable set properly to use the driver  stdvga.grn, with
default graphics of 320 by 200 by 256 colours.

Any ideas?  Thanks in advance.
-- 
David MacDonald