fbconfig question

I have several Ultra 40 workstations which have either an XVR-300 or XVR-2500 graphics cards. One on of them, 'fbconfig -list' shows the following:

  Device File Name            Device Model     Config Program

  ----------------            ------------     --------------

  /dev/fbs/kfb0               XVR-2500         SUNWkfb_config

On all the rest of the XVR-2500 machines, it just shows this:

  Device-Filename              Specific Config Program

  ---------------              -----------------------

  /dev/fbs/kfb0                SUNWkfb_config

The XVR-300 machines are the same way; they list the device filename and config program, but not the model. How do I get them all to list the model?

Thanks!