error while running a GUI application in mini2440 board

Preetam
Hi guys,
i am trying to run a GUI application inside mini2440(FriendlyARM board that
runs Qtopia).
I followed instructions from 

http://mini2440vietnam.blogspot.com/2011/05/programming-application-for-...

& the following from "tslib & Qt compilation" compilation

http://mini2440vietnam.blogspot.com/2011/04/upgrade-qt462-in-mini2440.html

i have set up necessary environment on my machine and also in Qt Creator as
given in the blog.

i have followed all the instructions from this blog, but when i try to
execute this application inside ubuntu bash terminal

(here i am connected to mini2440 using telnet
and the GUI application binary is in "/opt/Qtopia/bin")

i get the following error

[root@FriendlyARM bin]# ./HelloWorld 
QWSDisplay::Data::init: Invalid argument
Client can't attach to main ram memory.
Aborted

what is the problem here, was there any mistakes during my compilation.??

now that i understand that this is terminal and can't run GUI apps, but
when i try to run this application inside mini2440 board, nothing happens,
Qtopia/system doesn't even recognizes the binary and "?" sign appears as
the application icon.

What is wrong with this?? and what will i have to do to  make this
happen(run GUI application compiled from Qt Creator 2.0.1 in Linux) ???

thankyou.

davef
Show us the command you are using to run the app on the mini2440.