Something

Debugger entered--Lisp error: (error "Invalid date: K, 29 dets	2010 17:41:17 +0200") 
  signal(error ("Invalid date: K, 29 dets  2010 17:41:17 +0200"))		      
  error("Invalid date: %s" "K, 29 dets	2010 17:41:17 +0200")			      
  date-to-time("K, 29 dets  2010 17:41:17 +0200")				      
  #[nil "rq\210\306	!\211\211A@)\307\310\n!8Z\211\311W\203+\n\211@S\240\21
  funcall(#[nil "rq\210\306	!\211\211A@)\307\310\n!8Z\211\311W\203+\n\211@
  byte-code("\306	\n#\210\205\307\310\311#\312\216\310\313\314\217*\
  nntp-with-open-group-function(nil "news.gmane.org" nil #[nil "rq\210\306	!\211
  nntp-request-newgroups("K, 29 dets  2010 17:41:17 +0200" "news.gmane.org")	      
  gnus-request-newgroups("K, 29 dets  2010 17:41:17 +0200" (nntp "news.gmane.org" (nnt
  gnus-ask-server-for-new-groups()						      
  gnus-find-new-newsgroups()							      
  gnus-setup-news(nil nil nil)							      
  byte-code("\204	\204\306 \210\202Q\307\310!\210\311\n!\f\204
\203
  gnus-1(nil nil nil)								      
  gnus(nil)									      
  call-interactively(gnus t nil)						      
  execute-extended-command(nil)							      
  call-interactively(execute-extended-command nil nil)