y2controlcenter: cannot connect to X server

[y2controlcenter: cannot connect to X server]

I have this strange problem on SLES9.Things I did:

 

telnet from a SLES9 (A) machine to SLES9 (

 

su to root

export DISPLAY=A:0.0

When I try to bring up yast2 I get the error

y2controlcenter:cannot connect to X server..

 

This behavior is observed only on SLES 9 machine..I can bring up yast2 fine using Solaris or other SUSE linux and also RED HAT..

 

Appreciate any help towards this issue.

Thanks