hello, the recent updates of the module system seem to have broken Trex. the problem is that Hugs.Trex tries to export "EmptyRec" which is a data constructor and so cannot be named explicitly in an export list. (interestingly enough the Prelude does the same, but no error seems to occur) a quick fix that seems to work is to change the Hugs.Trex module as follows: module Hugs.Trex( module Hugs.Trex ) where import Hugs.Prelude as Hugs.Trex -- ( Rec, EmptyRec, EmptyRow ) of course now Trex exports the whole of the Prelude, but hey it is a quick fix :-) bye iavor -- ================================================== | Iavor S. Diatchki, Ph.D. student | | Department of Computer Science and Engineering | | School of OGI at OHSU | | http://www.cse.ogi.edu/~diatchki | ==================================================