Error Message Feedback: 500 EOF when chunk header expected

Hi,

this regards the error message "|500 EOF when chunk header expected".

|Searching the archive only pointed to this, a request for a 
reproducible url:
http://lists.w3.org/Archives/Public/www-validator/2005Oct/0057

Here is what i tried to validate.
http://validator.w3.org/check?verbose=1&uri=http%3A%2F%2Fwww.ida.liu.se%2F~hetan%2F

I've seen the same error in a Perl module here which used LWP to crawl 
our pages. The error turned up after upgrading from Apache 1.3 to Apache 
2.0, a fairly standard installation. General googling only turned out an 
opinion that this is a bug in the libwww implementation regarding 
HTTP/1.1. In our case it worked to force LWP into HTTP/1.0-mode.

   regards,
       Andreas Lange