Customer tries to change the resolution for a single client, or for all clients, 
but the resolution continues to default back to 1280x1024, or whatever the best 
possible resolution is for that particular framebuffer/monitor combination.             

Some customers may be using either a flat screen display for their Sun Ray 
clients, or they may be using non-Sun monitors.  Sun Ray 1.2 comes with an
auto-detect function that is designed to choose the best possible resolution 
that the client frame buffer (video card) and monitor are capable of.  

In the case of a flat screen or a non-Sun monitor, sometimes the auto-detect chooses
a resolution that doesn't work.  In order to force the client to accept a 
different resolution, you might need to disable the auto-detect function.

To disable the auto-detect function:
# utxconfig -a -s off

To set a resolution for all clients:
# utxconfig -a -r '1024x768'       (where 1024x768 is an example resolution)

To set a resolution for one client:
# utxconfig -r '1024x768' -d :xx    (where xx is the number of the session)

To reset a session to default settings in which the token continues to inherit 
the auto-detected resolution:
# utxconfig -e [-d display] [-t token] [-a all]

You must logout of CDE and login again (restart your dtlogin session) for the new resolution to take effect.