Same here, they are missing from the panel, but everything appears to be resolving correctly. I'm guessing it has something to do with the DNS changes they are making outlined in announcement #4886813.
edit, here is a dig on my domain (I had to use ns2 as ns1 could not be reached)-
; <> DiG 9.2.3 <> @ns2.dreamhost.com xxxxxx.org
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61763
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
;; QUESTION SECTION:
;xxxxxx.org. IN A
;; ANSWER SECTION:
xxxxxx.org. 14400 IN A 126.96.36.199
;; AUTHORITY SECTION:
xxxxxx.org. 14400 IN NS ns1.dreamhost.com.
xxxxxx.org. 14400 IN NS ns2.dreamhost.com.
xxxxxx.org. 14400 IN NS ns3.dreamhost.com.
;; ADDITIONAL SECTION:
ns1.dreamhost.com. 14400 IN A 188.8.131.52
ns2.dreamhost.com. 14400 IN A 184.108.40.206
ns3.dreamhost.com. 14400 IN A 220.127.116.11
;; Query time: 84 msec
;; SERVER: 18.104.22.168#53(ns2.dreamhost.com)
;; WHEN: Tue Jul 26 10:16:38 2005
;; MSG SIZE rcvd: 170