[racket] #lang racket/gui

I'm exploring Racket's Gui Toolkit but I'm having a problem even getting a
frame to "show" in interactive mode.

Definitions:
#lang racket/gui  (clicked on run before entering lines below.

Interactions:
Welcome to DrRacket, version 5.3.6 [3m].
Language: racket/gui; memory limit: 128 MB.
> (define frame (new frame% [label "Example"]))
> (send frame show #t)
> frame
(object:frame% ...)
>

I'm using the Fedora 18 x86_64 version.

Michael
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