Momentary appearence of graphic window in Octave 3.0.1-vs2008

[Prof M. N. Anandaram]

Hello:                                                       June 8, 2008
 I have this problem of the graphic window disappearing after a second
when invoked as a script file through SciTE editor in my WinXP install of 
Octave 3.0.1-vs2008 with jhandles backend selected in my Celeron 2.66GHz computer.
First I try the builtin functions peaks(), sphere(), and sombrero() directly in dos window.
They all appear after a couple of seconds delay and are beautiful to behold and to spin around,
and persist until dismissed by clicking X at top right corner.
Next I save the same functions as a script file and hit the F5 button (or, GO in Tools Menu item 
of SciTE edit window.).   A blank graphic window appars and disappears after a second.
There is no error message at all in the SciTe output window. 
I also tried a Matlab script which works and graphs well in Matlab v7.0 window. But when that script
is run under Octave through SciTE edit window, I get data output alright in the output window .
The graphic window flashes the plot alright too but disappears in a moment as before.
The same script runs well (after minimal changes) in my Visual Python  install which
shows both 2D and 3D plots also in their own persistent graphic windows.
I put the scripts in my "H:\Octave\share\octave\3.0.1\m \" folder and tried again.
The problem continues.
Any solution to this problem friends ?
Mandayam Anandaram