hey guys, i recently got mumble installed on my vps but i've been unable to get it to bind to a hostname. here is the error:

root ~ # /etc/init.d/mumble-server restart
Shutting down mumble-server: [FAILED]
Starting mumble-server: <W>2013-01-12 23:31:22.407 Initializing settings from /etc/mumble-server.ini (basepath /etc)
<F>2013-01-12 23:31:22.408 Lookup of bind hostname rrerr.groundshooting.com failed
[ OK ]

server pings out fine:

root ~ # ping google.com
PING google.com (74.125.225.0) 56(84) bytes of data.
64 bytes from ord08s05-in-f0.1e100.net (74.125.225.0): icmp_seq=1 ttl=57 time=13.5 ms
64 bytes from ord08s05-in-f0.1e100.net (74.125.225.0): icmp_seq=2 ttl=57 time=12.4 ms
^C
--- google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1955ms
rtt min/avg/max/mdev = 12.475/13.004/13.533/0.529 ms

subdomain resolves correctly as well:

; <<>> DiG 9.8.1-P1 <<>> rrerr.groundshooting.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39377
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;rrerr.groundshooting.com. IN A

;; ANSWER SECTION:
rrerr.groundshooting.com. 350 IN A 64.91.233.169

;; AUTHORITY SECTION:
groundshooting.com. 350 IN NS ns.sourcedns.com.
groundshooting.com. 350 IN NS ns1.sourcedns.com.

;; Query time: 9 msec
;; SERVER: 10.20.4.254#53(10.20.4.254)
;; WHEN: Sat Jan 12 23:40:23 2013
;; MSG SIZE rcvd: 103

any ideas? does mumble not work with subdomains?