Display problem

hi frnds

i got problem,in solaris client machine,once the user enter his name and password the display is not cmg,its blank screen

let me know the answer

What Solaris are you running (OS version, type/model of system, X86 or Sun)?

What, if any, errors are you seeing on the screen, in /var/adm/messages (or appropriate logging file)?
Is this happening for all users or just one? Have you tried logging in as root - do you get the same results?
Have you tried rebooting the box?
Can you login to the box remotely?