Well, I can see I am going to have to revisit my 1.4.5 installation and possibly one or two older versions, because other than the odd game or demo that took over the native hardware, I never got it to open an intuition screen under AGA.
Weren't the early MorphOS incarnations patches onto the OS3.x installation? I seem to (vaguely) remember that MorphOS was developed kinda piecemeal, requiring significant chunks of OS3.x in order to function. Perhaps Franko tried an early 0.x release?
@Franko - you're not thinking of PowerUP (rather than MorphOS) are you?
