Funny cache records

[Jeff Stevens]

I have a customer reporting intermittent problems resolving www.msn.com 
(but not msn.com) and I had him dump his cache and I see the following. 
  What kind of situations would cause the cache to have these SOA's and 
an A record of localhost?

$ORIGIN msn.COM.
;help	243	IN	SOA	localhost. postmaster.localhost. (
;		2002100100 3600 1800 604800 3600 );msn.com.;NXDOMAIN	;-$	;Cr=auth 
[206.13.29.12]
www	2376	IN	SOA	localhost. postmaster.localhost. (
		2002100100 3600 1800 604800 3600 )	;Cr=auth [206.13.29.12]
;	2376	IN	A	localhost. postmaster.localhost. (
;		2002100100 3600 1800 604800 3600 );www.msn.com.;NODATA	;-$	;Cr=auth 
[206.13.29.12]

-- 
Jeffrey Stevens