How to run glxgears in Feisty?

[Larry Alkoff]

Under Dapper, it was only necessary to run the command 'glxgears'
to have a nice display and frame rate.

When I attempt to run 'glxgears' on my brand new installation of 
Feisty,  glxgears do not run but a usage message appears as below:
   -display <displayname>  set the display to run on
   -stereo                 run in stereo mode
   -fullscreen             run in fullscreen mode
   -info                   display OpenGL renderer info

None of these seem to anything, particularly
glxgears -display :0.0

How can I get the old display I'm used to?

Larry
-- 
Larry Alkoff N2LA - Austin TXUsage:
Using Thunderbird on Linux