[plt-scheme] Stepper doesn't run?

[snip]
> Unless you already know about it, I recommend a thorough look at How to 
> Design Programs (htdp://www.htdp.org).
                   ^^^^

It's interesting to notice that matthias fingers forgot how to type
http. :) htdp seems nicer... ;)

Cheers,

-- 

Paulo J. Matos : pocm [_at_] mega . ist . utl . pt
Instituto Superior Tecnico - Lisbon
Computer and Software Eng. - A.I.
 - > http://mega.ist.utl.pt/~pocm
---
        -> God had a deadline...
                So, he wrote it all in Lisp!