[racket] All black images...Ahhh

From: Mark Engelberg (mark.engelberg at gmail.com)
Date: Wed Jul 21 04:20:57 EDT 2010

I recently reported a bug that sounds extremely related: (Problem
Report 11033) where empty white scenes were sometimes showing up as
black.  Also on Windows.

You might want to check whether this fix addresses that bug as well,
and if so, you can close out that problem report.

Posted on the users mailing list.