Ahn Ki-yung wrote: >Prelude> f 1 where f x = x : f x >[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, >,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, >,1,1,{Interrupted!} > >Prelude> f 1 where f x = x + f x --> Immediate (!) crash Indeed, I could reproduce this on my computer (Win2000; Hugs Dec 2001 of last week). Rijk-Jan van Haaften