Problem with H.ROOT-SERVERS.NET?

Has anybody else noticed problems with this server? I am trying
to resolve LETTERSMAGAZINE.COM.

According to the whois database, this domain has been around for over
a month and is not listed as being on hold. It appears to be directed
properly from all root servers except H.

The serial numbers on the root servers for the . zone appear to match.

-pete

; <<>> DiG 2.1 <<>> lettersmagazine.com @h.root-servers.net
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 10
;; flags: qr aa rd; Ques: 1, Ans: 0, Auth: 1, Addit: 0
;; QUESTIONS:
;; lettersmagazine.com, type = A, class = IN

;; AUTHORITY RECORDS:
. 86400 SOA A.ROOT-SERVERS.NET. hostmaster.INTERNIC.NET. (
                        1997041100 ; serial
                        10800 ; refresh (3 hours)
                        900 ; retry (15 mins)
                        604800 ; expire (7 days)
                        86400 ) ; minimum (1 day)

;; Total query time: 33 msec
;; FROM: horizon.tiac.net to SERVER: h.root-servers.net 128.63.2.53
;; WHEN: Sat Apr 12 12:20:26 1997
;; MSG SIZE sent: 37 rcvd: 110

This works fine from every other root server...

; <<>> DiG 2.1 <<>> lettersmagazine.com @g.root-servers.net
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10
;; flags: qr rd; Ques: 1, Ans: 0, Auth: 2, Addit: 2
;; QUESTIONS:
;; lettersmagazine.com, type = A, class = IN

;; AUTHORITY RECORDS:
lettersmagazine.com. 172800 NS ZORK.TIAC.NET.
lettersmagazine.com. 172800 NS SUNDOG.TIAC.NET.

;; ADDITIONAL RECORDS:
ZORK.TIAC.NET. 172800 A 199.0.65.2
SUNDOG.TIAC.NET. 172800 A 199.0.65.9

;; Total query time: 43 msec
;; FROM: horizon.tiac.net to SERVER: g.root-servers.net 192.112.36.4
;; WHEN: Sat Apr 12 12:20:53 1997
;; MSG SIZE sent: 37 rcvd: 117