I have been using tigervnc-server with CentOS6.2 since last summer. I worked well.
Two days ago, I installed CentOS6.2 with Software development environment in a new PC and after "yum -y install update", tried to insall tigervnc-server using "yum -y install tgervnc-server"
Installation itself has finished without any touble but vncserver didnot start with the message like belows
[centos@matlablnx66 ~]$ vncserver -geometry 1600x956 :1 xauth: (stdin):1: bad display name "matlablnx66:1" in "add" command
WARNING: The first attempt to start Xvnc failed, possibly because the font catalog is not properly configured. Attempting to determine an appropriate font path for this system and restart Xvnc using that font path ... Could not start Xvnc.
/usr/bin/Xvnc: symbol lookup error: /usr/bin/Xvnc: undefined symbol: pixman_composite_trapezoids /usr/bin/Xvnc: symbol lookup error: /usr/bin/Xvnc: undefined symbol: pixman_composite_trapezoids
[centos@matlablnx66 ~]$