GConf Error: No D-BUS daemon running?! How to reinstall or fix?
I had this same problem. In my system the problem is caused for ~/.dbus being owned by root. Changing ownership me solved the problem for me. I suggest you to check this on your system too.
Changing the ownership can be done with the chown command. For a single file:
chown <user>:<group> file
For a directory and its children:
chown -R <user>:<group> folder
So, in this case,
chown -R <your user>:<your group> ~/.dbus
should work.
Try export $(dbus-launch)
This worked for me on Opensuse 12.1 while running it as a VM.