VNC failed to initialize HAL

[sync]

Hi,all:

   Today, I use the vnc tool to connect the server , but it has the
following message:

     test at xxx: ~   vi ~/.vnc/xxx:1.log
     ..
     ...
      libhal.c 644 : Error connecting to system bus: Message did not receive
a reply
     **(gnome-volume-manger:30626):
WARING**: manager.c/912:failed to initialize HAL!


    The server's os is CentOS 4.7 x86_64, I tried to google or CentOS
community BBS  for  the answer , but had no anything useful information.


   Could someone give me some suggestions? Thanks in advances~