[Cooker] Fix for huge fonts in XFree4 with MDK8.1

[John J. Allen]

Assuming your are using kdm for logins
In the file /etc/X11/xdm/Xservers add -dpi 75 or whatever you want your DPI to be
to the following line

# original line
:0 local /usr/X11R6/bin/X -deferglyphs 16

# modified line
:0 local /usr/X11R6/bin/X -deferglyphs 16 -dpi 75


Perhaps we could add this to some config tool??