google-public-dns-a.google.com can't find hostname: Non-existent domain

[flash_os]

When I try to "Verify that Google Public DNS can resolve the selected
hostname":
http://code.google.com/speed/public-dns/docs/using.html#step2
With command: "nslookup -debug hostname 8.8.8.8"
I got this:

C:\Documents and Settings\nnnn>nslookup -debug hostname 8.8.8.8
------------
Got answer:
HEADER:
opcode = QUERY, id = 1, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 1, authority records = 0,
additional = 0

QUESTIONS:
8.8.8.8.in-addr.arpa, type = PTR, class = IN
ANSWERS:
-> 8.8.8.8.in-addr.arpa
name = google-public-dns-a.google.com
ttl = 86136 (23 hours 55 mins 36 secs)

------------
Server: google-public-dns-a.google.com
Address: 8.8.8.8

------------
Got answer:
HEADER:
opcode = QUERY, id = 2, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1,
additional = 0

QUESTIONS:
hostname.home, type = A, class = IN
AUTHORITY RECORDS:
-> (root)
ttl = 1536 (25 mins 36 secs)
primary name server = a.root-servers.net
responsible mail addr = nstld.verisign-grs.com
serial = 2011112500
refresh = 1800 (30 mins)
retry = 900 (15 mins)
expire = 604800 (7 days)
default TTL = 86400 (1 day)

------------
*** google-public-dns-a.google.com can't find hostname: Non-existent
domain

[Yunhong Gu]

Replace "hostname" with the real hostname that you were trying to check.

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[flash_os]

Like that?

nslookup -debug google.com 8.8.8.8

[Paul S. R. Chisholm]

Like that, or like (note the dot at the end):
nslookup -debug google.com. 8.8.8.8

Your computer is set up to look up hostnames in the ".home" zone by
default, except for names that end with a dot. You don't have to
append a dot to hostnames you use in other places (such as your
browser), but on your system nslookup seems pretty insistent.

Hope this helps. --PSRC