f16 error on starting emacs from root as "su -"

[jackson byers]

f16 error on starting emacs from  root as "su -"

[root at f16a9 ~]# uname -a
Linux f16a9.pacbell.net 3.4.9-2.fc16.i686.PAE #1 SMP Thu Aug 23
18:41:34 UTC 2012 i686 i686 i386 GNU/Linux


[root at f16a9 ~]# emacs test.sudash &
[1] 2042
[root at f16a9 ~]#
no emacs window
evidently the emacs job is "stopped":

[root at f16a9 ~]# ps aux |grep emacs
...
root      2042  0.0  0.3  30056  6488 pts/0    T    11:57   0:00 emacs
test.sudash
root      2044  0.0  0.0   4600   816 pts/0    S+   11:58   0:00 grep
--color=auto emacs

[1]+  Stopped                 emacs test.sudash
[root at f16a9 ~]#

If I go to root as "su"  [no dash]
then I do get an emacs window,
although with an annoying error message:
[root at f16a9 byers]# emacs test.sunodash &
[1] 2071
[root at f16a9 byers]#
(emacs:2071): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
Did not receive a reply. Possible causes include: the remote
application did not send a reply, the message bus security policy
blocked the reply, the reply timeout expired, or the network
connection was broken.
GConf Error: No D-BUS daemon running


(emacs:2071): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
Did not receive a reply. Possible causes include: the remote
application did not send a reply, the message bus security policy
blocked the reply, the reply timeout expired, or the network
connection was broken.

[root at f16a9 byers]#

Despite error msg,
the emacs window comes up and acts normally.

any  help?