Hugs editing on Mac.

[Julio Rubio Garcia]

Dear colleagues,
I'm planning to teach a course about Algorithms and
Data Structures, by using Hugs.
My students have MacIntosh computers (o.s. Mac OS 
E1-9.1). When I try to use the -E option (with
:set or in the Preferences file), I obtain a
nice little bomb (rather the equivalent to a bomb
in this modern O.S.). What's the problem ?
Thank you in advance for your answer.
Sincerely yours, JULIO.