video/visual error in running

hi Everyone, I have experienced this error after I successfully installed xibo client in my ubuntu 10.04...

samuel@samuel:/opt/xibo/pyclient/client/python$ sudo ./run.sh
[sudo] password for samuel:
Xibo Client v1.4.2
Reading default configuration
Reading user configuration
Log Level is: 0
Logging will be handled by: XiboLogXmds
Switching to new logger
[14-03-30 03:13:24.142] ERROR: Setting SDL video mode failed: Couldn't find matching GLX visual. (size=(960,540), bpp=24, multisamplesamples=1).
Exception in thread Thread-2:
Traceback (most recent call last):
  File "/usr/lib/python2.6/threading.py", line 532, in __bootstrap_inner
    self.run()
  File "XiboClient.py", line 4250, in run
    self.player.play()
RuntimeError: Setting SDL video mode failed: Couldn't find matching GLX visual. (size=(960,540), bpp=24, multisamplesamples=1).

does anyne have an idea about my case? please help... thanks in advance