[racket] trouble with draw.ss teachpack

I would start by not using the draw teachpack, nor the parts of HtDP that refer to it.  Most of us have been doing graphics using the image, universe, and/or picturing-programs teachpacks instead for several years.  One  easy introduction to the currently approved approach is at http://www.picturingprograms.com/pdf .  Another introduction (with less emphasis on graphics) is the sections of htdp2e that Matthias mentioned.

Stephen Bloch
sbloch at adelphi.edu