I think I've found the problem: it's Squeak 2.4c that exhibits the 
problem. When I tried the same thing in 2.4b it worked fine. I had 
actually downloaded the source file in a .sea so I couldn't imagine that 
it had got corrupted, but just to make sure I downloaded it in 
uncompressed form and it was just the same.

This is all on a Mac, so it might be a problem specific to this platform.

>Oh No!  The FAQ strikes again!  :-)
>
>Try downloading the Sources file a third time, this time
>making sure you download it in 'binary' (not 'text') mode.
>
>The problem is that the line feed / carriage return combo
>used by Squeak differs from what is natively used on your
>system.  Thus, when you download as text, your browser/ftp 
>client/whatever tries to be smart and substitutes the ascii
>character(s) appropriate to your platform.  Squeak doesn't
>expect this (the image and sources files are platform independent), 
>and displays the garbage that you see before you.
>
>Josh
>
>On Tue, 8 Jun 1999, Neal Nelson wrote:
>
>> I'm new to Squeak, although I have been using SmallTalkMT for the last 
>> six months. I have downloaded V2.4c and I for about half of the methods I 
>> get no source code. Instead I get either garbage or in some cases parts 
>> of code variously in what looks like C and Pascal or Modula. Some cases 
>> cause an error when I select the method in a browser.
>> 
>> I downloaded the SourcesV2 file twice so I believe I have the necessary 
>> configuration.
>> 
>> Does anyone have a suggestion as to what is wrong?
>> 
>> Thanks.
>> 
>> 
>