X11R6 server (assuming a Motif 1.2.* runtime environment)?
David> The only situation that I could imagine is a case in which Motif 1.2 code was written to depend on a particular bug or behavior of an X11R5 server; I know of no such cases. Because of the stability of the X11 protocol, Motif 1.2 programs should work with any available X server, current and future. 3. If Motif 2.0 is installed such that the Motif libraries and mwm are versions 2.