Thanks Matthew, Jay.  The 'mred -z' was already in the quark elisp code. So yay that solved the mred-kernel  load problem all right, but I'm trying to run plt/redex and although running 'mred -z' allows me to load my program and call it, whereupon it opens a window, the GUI thread doesn't appear to be getting any cycles as it doesn't respond/draw etc until I <ctrl-D>/kill the scheme process '*scheme*' in emacs, at which point the GUI window I opened becomes spontaneously overjoyed and starts responding in a macabre display of schadenfreude.  If I run 'mred' without the -z arg then I get the little bare bones GUI windows where I can type the commands that are normally executed via the lisp commands in the scheme-mode.  When I do this the window I'm opening (well, that PLT/Redex is opening really) appears and is enabled as it is interactive and everything works.  Is this a known issue and is there a known workaround? Thanks -ben <div>On 10/3/05, Matthew Flatt <<a href="mailto:mflatt@cs.utah.edu">mflatt@cs.utah.edu</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> At Mon, 3 Oct 2005 18:07:24 +0100, ben kavanagh wrote: > Anyone know offhand how much work it would be to add mred-kernel to mzscheme > interpreter It's as easy as compiling MrEd. :) > so that I can run gui applications via emacs? I think you want `mred -z'. Matthew </blockquote></div>