[racket] DrRacket Crashes?

I don't have any #lang lines, but the interactions pane reads:

Welcome to DrRacket, version 5.3 [3m].
Language: Beginning Student; memory limit: 256 MB.
>

On 17 December 2012 19:04, Kieron Hardy <kieron.hardy at gmail.com> wrote:

> This doesn't fail for me with DrRacket 5.3.1.9--2012-12-07(92c5025/a) on
> Vista using #lang racket, #lang racket/base or #lang racket/gui
>
> Kieron.
>
>
> On Mon, Dec 17, 2012 at 4:07 PM, Adam Golding <adamgolding at adamgolding.com
> > wrote:
>
>> (require picturing-programs)
>>
>> (big-bang (overlay pic:calendar (rectangle 100 100 "solid" "white"))
>> (on-draw show-it) (on-tick rotate-cw 1/2))
>>
>
>
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