keyboard and mouse not working in graphical login

Dear frnz

I face a weird issue with p275 workstation with Aix 5.1
After booting the workstation i am getting dt login screen and i am not able to key in user name and passwd .The mouse pointer is moving but the mouse buttons doesnt work.
i am able to login through rsh to the machine remotely.Could anyone tell me where i need to look into to fix this issue.
Note : I am able to use the keyboard in SMS menu

The keyboard you are able to see in sms menu.
First you change the port of keyboard and mouse...
Otherwise go for for default settings and try