Well, I read the how-to and all of the relevant posts I could find and I am not quite there yet. I installed libsdl, libsdl-mixer, and prboom from zports. I installed the -3 version of the sdlcx00. I am running Cacko and it would not start from the icon on the games menu (yes, I unchecked the magnify box). I tried a variety of command line options with no luck. The screen is rotated 90 degrees left with the corresponding keymap problems. I found this thread and tried exporting the rotation variable (tried 1,2,3,0). The succeeded in rotating the screen 90 degrees right. However, after the futzing, it runs from the icon in the games menu. Help.