Hi, I've got a weird problem that the arrows not appearing when I draw a graph. They appear, though not fully when I mouseover a node. As graph.ss seems to work fine with the module browser, I'm guessing I've done something wrong - Does anyone have any hints? I have some sample code below. Cheers, Stephen -snip of my code-   (define the-editor-canvas (instantiate editor-canvas% (the-vertical-pane)))     (define the-graph-pasteboard (instantiate (graph-pasteboard-mixin pasteboard:basic%) ()))   (send the-editor-canvas set-editor the-graph-pasteboard)     (define my-graph-snip% (graph-snip-mixin string-snip%))   (define (connect parent child)     (define dark-pen (send the-pen-list find-or-create-pen "blue" 1 'solid))     (define dark-brush (send the-brush-list find-or-create-brush "blue" 'solid))     (define light-pen (send the-pen-list find-or-create-pen "light blue" 1 'solid))     (define light-brush (send the-brush-list find-or-create-brush "light blue" 'solid))     (add-links parent child                dark-pen light-pen                dark-brush light-brush))     (define aaa (make-object my-graph-snip% "aaa"))   (define bbb (make-object my-graph-snip% "bbb"))   (define ccc (make-object my-graph-snip% "ccc"))   (define ddd (make-object my-graph-snip% "ddd"))     (send the-graph-pasteboard insert aaa)   (send the-graph-pasteboard insert bbb)   (send the-graph-pasteboard insert ccc)   (send the-graph-pasteboard insert ddd)       (send the-the-frame show #t)      (define-values (width height) (send the-editor-canvas get-client-size))   (printf "width:~a height:~a" width height)   (define (random-position extent)     (+ 30 (random (- extent 60)))     )   (send the-graph-pasteboard move-to aaa (random-position width) (+ 30 (random (- height 60))))   (send the-graph-pasteboard move-to bbb (+ 30 (random (- width 60))) (+ 30 (random (- height 60))))   (send the-graph-pasteboard move-to ccc (+ 30 (random (- width 60))) (+ 30 (random (- height 60))))   (send the-graph-pasteboard move-to ddd (+ 30 (random (- width 60))) (+ 30 (random (- height 60))))   (connect aaa bbb)   (connect ccc bbb)   (connect ddd bbb)   (connect aaa ddd)   -- Stephen De Gabrielle <a href="mailto:s.degabrielle@ucl.ac.uk">s.degabrielle@ucl.ac.uk</a> Telephone +44 (0)20 7679 5242 (x45242) Mobile                  079 851 890 45 <a href="http://www.uclic.ucl.ac.uk/annb/MaSI.html">http://www.uclic.ucl.ac.uk/annb/MaSI.html</a> University College London Interaction Centre Remax House - 31/32 Alfred Place London - WC1E 7DP