I just installed M8 on a secondary computer and everything is good to go except I can't get my screen resolution above 1024x768.
Also I get this message at start up that says:
Undefined video mode number 317
Press <Enter> to see available video modes
So I pressed enter but I'm clueless as to which one to choose and I don't want to pick the wrong one then have things totally borked.
Does AntiX have a utility similar to xorgsetup in Slackware that I can run? Had the same problem with screen resolution under Slackware and that's how I fixed it.
Any help would be appreciated. Thanks.

Try changing vga=791 to vga=normal in /boot/grub/menu.lst

Also, you could boot the livecd, hit f3 at boot/menu to get the screen resolution you want and once booted copy the /etc/X11/xorg.conf livecd file to your /etc/X11/ installed directory.

Msystem does this in one of its options.

Another way is to boot with the 3 option in the menu (init3), login as root and then Xorg -configure

You could also just edit, as root /etc/X11/xorg.conf and add the desired resolutions. Also make sure your using the correct drive for your chip wheather it's free or proprietary. You may just be using the vesa drive right now.

Changing the VGA in /boot/grub took care of the video mode message, and editing /etc/X11/xorg got me the resolution I was looking for.
Thanks, both of ya's, I do appreciate the help.