rviz does not start, prints "GLXUnsupportedPrivateRequest"

edit

When I try to run rviz, I get the following output:

[reuter@fahrsim04:~]$ rosrun rviz rviz                                                                                                                                                                             (07-13 17:48)
Xlib:  extension "NV-GLX" missing on display ":0.0".
[ INFO] [1310572108.380121383]: Loading general config from [/fzi/ids/reuter/.rviz/config]
[ INFO] [1310572108.380396700]: Loading display config from [/fzi/ids/reuter/.rviz/display_config]
The program 'rviz' received an X Window System error.
This probably reflects a bug in the program.
The error was 'GLXUnsupportedPrivateRequest'.
  (Details: serial 21 error_code 177 request_code 155 minor_code 16)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
[reuter@fahrsim04:~]$

...and the program doesn't run.

Notes:

I get the message Xlib: extension "NV-GLX" missing on display ":0.0". for every glx program I run. I have not been able to determine what is causing this, as this system is using an intel card with an intel driver. All the programs work fine, though, and glxinfo reports that direct rendering is enabled.

A google search about the error has not yielded a solution.

What can I do to get rviz to work?