Hi TopNotch. The 'text' bootcode provides an ~ 25x80 TTY. Could setup two Grub boot options, one for "graphic" mode, the other TTY 'text' to simulate DOS. Or use the 'multivt' bootcode, boot into regular graphics, when time for DOS type work press Ctrl-Alt-F# to work from TTY. Or if running Xorg in graphic mode use the xrandr command (eg xrandr -s 640x480) to set resolution. Test various resolutions, then create an ~/.X.d/ entry to load the desired resolution at boot.