Problem with nano-X in a nios-mmu system

Hi,

I'm working on using LCD in a nios2-mmu system on NEEK, I followed the instructions on nios-wiki to configure the kernel and modified altfb.c by advices of Kazu (The thread name is "Linux with MMU on Neek ",I can't give a direct link in my rank now,pls search the title in this forum), The result in my Linux is: "fb_test" command can be ran successfully:

The framebuffer device was opened successfully.
800*480, 32bpp
The framebuffer device was mapped to memory successfully. 
 

but I can not run Nano-X :

cantnot bind to named socket 

and when I add microwindows app to the system, the following two commands were worked! I can see figures on my LCD Screen.

mtest
mtest2

the image I download to NEEK is "linux.initramsfs.gz" in */nios2-linux/uClinux-dist/images.

What's the problem with nano-X? How can I start it?

I need your help, please give me some advice and thank you.

PS: I followed the thread of "Linux with MMU on NEEK", but there is not any response for almost four days. So, I post this thread, pls forgive me...