root servers followup

This problem is definitely occuring on h.root-servers.net at the
present time as documented below (similar to results that I see just
arrived in my mailbox from <jh@yahoo.com>. However, an earlier log
from our support department shows that d.root-servers.net and
possibly e.root-servers.net were also having this problem within
the past 60-90 minutes. (also see below)

; <<>> DiG 2.0 <<>> @g.root-servers.net mail.scruznet.com
; (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:
;;      mail.scruznet.com, type = A, class = IN

;; AUTHORITY RECORDS:
SCRUZNET.com.   172800  NS      NS.SCRUZ.NET.
SCRUZNET.com.   172800  NS      NS2.SCRUZ.NET.

;; ADDITIONAL RECORDS:
NS.SCRUZ.NET.   172800  A       165.227.1.1
NS2.SCRUZ.NET.  172800  A       165.227.2.10

;; Total query time: 433 msec
;; FROM: ns.scruz.net to SERVER: g.root-servers.net  192.112.36.4
;; WHEN: Thu Feb 13 18:19:47 1997
;; MSG SIZE  sent: 35  rcvd: 123


; <<>> DiG 2.0 <<>> @h.root-servers.net mail.scruznet.com
; (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:
;;      mail.scruznet.com, type = A, class = IN

;; AUTHORITY RECORDS:
.       86400   SOA     A.ROOT-SERVERS.NET. hostmaster.INTERNIC.NET. (
                        1997021100      ; serial
                        10800   ; refresh (3 hours)
                        900     ; retry (15 mins)
                        604800  ; expire (7 days)
                        86400 ) ; minimum (1 day)

;; Total query time: 157 msec
;; FROM: ns.scruz.net to SERVER: h.root-servers.net  128.63.2.53
;; WHEN: Thu Feb 13 18:19:47 1997
;; MSG SIZE  sent: 35  rcvd: 108

--
earlier (sorry, nslookup, not dig)
--
> server d.root-servers.net
Default Server:  d.root-servers.net
Served by:
- rs0.internic.net
          198.41.0.5
          ROOT-SERVERS.net
- ns.ripe.net
          193.0.0.193
          ROOT-SERVERS.net
- gw.home.vix.com
          192.5.5.1
          ROOT-SERVERS.net


> cygnus.com
Server:  d.root-servers.net
Served by:
- rs0.internic.net
          198.41.0.5
          ROOT-SERVERS.net
- ns.ripe.net
          193.0.0.193
          ROOT-SERVERS.net
- gw.home.vix.com
          192.5.5.1
          ROOT-SERVERS.net


Name:    cygnus.com
Served by:
- C.ROOT-SERVERS.NET
          192.33.4.12
          com
- D.ROOT-SERVERS.NET
          128.8.10.90
          com
- E.ROOT-SERVERS.NET
          192.203.230.10
          com
- I.ROOT-SERVERS.NET
          192.36.148.17
          com
- F.ROOT-SERVERS.NET
          192.5.5.241
          com
- G.ROOT-SERVERS.NET
          192.112.36.4
          com
- A.ROOT-SERVERS.NET
          198.41.0.4
          com
- H.ROOT-SERVERS.NET
          128.63.2.53
          com
- B.ROOT-SERVERS.NET
          128.9.0.107
          com