XBOOT and other boot selectors start up GEM early in the AUTO folder boot,
so if such a boot selector is used to boot Dungeon Master, then it won't
run properly, as Dungeon Master is 'allergic' to GEM.  Fortunately there
is a simple trick to avoid this, without having to disable XBOOT or some
other such selector that you normally want.

This trick relies on the fact that most Atari harddisk drivers allow you
to boot AUTO folders on a partition independent of the partition where
the harddisk driver was found.  I know that both HDDriver and ICD support
this, and in an identical fashion.  You just have to type the letter key
corresponding to the drive holding the AUTO folder you want, and this is
to be done as soon as you see the first harddisk responses appearing on
your screen.

So you create an AUTO folder on a partition where you don't normally have
one, and in this folder you store a copy of the DM_LOAD.PRG program and a
text file named DM_LOAD.INF which specifies where the main Dungeon Master
files reside (ENGINE.DM, GRAPHICS.DAT, DUNGEON.DAT).

For example, if your main Dungeon Master folder is "G:\GAMES\DM", so that
you want DM_LOAD.PRG to launch "G:\GAMES\DM\ENGINE.DM", then you need to
have a DM_LOAD.INF file containing the text line "g:\games\dm", except
for the quote marks of course.

The game folder does not have to reside on the same partition from which
DM_LOAD.PRG was booted, which allows this trick to be used even when all
partitions already use AUTO folders for other purposes, as for example
if you only have a single harddisk partition (even today some do).

So you install an AUTO folder, as described above, but on floppy instead
of harddisk.  With this floppy in drive A, you then type the 'A' key when
your harddisk driver starts up. It will then proceed to boot DM_LOAD.PRG
from floppy, but that will then switch active directory to the main game
folder on harddisk, and no more floppy accesses will occur.

Note that you can leave this floppy in the drive also in normal booting,
as it does not have any executable bootsector, and will therefore never
interfere with the normal boot processes.  It will only be activated as
and when you ask for it, by typing the letter A as the harddisk driver
starts up.
