X connection to localhost:10.0 broken (explicit kill or server shutdown)

UNIX AIX
1

I want to run applet on AIX 6 machine.

I already have setup $DISPLAY variable for putty session by selecting X11 option.

I got below error for any X related commands (xclock, X, applet viewer )

X connection to localhost:10.0 broken (explicit kill or server shutdown).

Please can anyone provide some solution, this will make big difference for my system.

---------- Post updated at 05:57 AM ---------- Previous update was at 03:52 AM ----------

I got my applet running on AIX .
After this error

X connection to localhost:10.0 broken (explicit kill or server shutdown).

I run below steps
step1: run xming application

step2: # ebmx

step3: #appletviewer myapplet.html