You ninja'd me with this, so I'll just make a separate post to make sure you see it: It's also possible that it's just the EGA thing. Are the others VGA?
I don't have the interpreter
1.SQ4.056 in VGA. Only in LOWRES-EGA. I think it's an interpreter specifically for a LOWRES-EGA edition. However, with the interpreter
1.SQ4.057, the game is in VGA in English, Spanish, as well as French. The German edition uses the interpreter
1.SQ4.030.