xterm's just like being cut

[wolf python london <lyh19901223%gmail.com@localhost>]

Hey , list

I have a fresh installation of  NetBSD 5.1(with pkgsrc-2011Q3). Xterm
here is just like being cut, which I mean cannot show the whole stuff
of stdout.
Here is the screenshot
1)** http://picpaste.com/default-tSM0qWmh.png **  is the default
config (I didn't config anything of xterm myself)
2)** http://picpaste.com/myconf-Uw5NccH2.png **  **
http://picpaste.com/myconfig2-odeLkgF0.png **
are my config , I just want to use the DejaVu Sans Mono font.

netbsd$ cat ~/.Xdefaults-xterm
xterm*faceName: DejaVu Sans Mono

As you can see, to simplify the complexity, I only config the font. I
do install the DejaVu Sans Mono font.
netbsd$ fc-list | grep -i dejavu
DejaVu Serif,DejaVu Serif Condensed:style=Condensed,Book
DejaVu Serif,DejaVu Serif Condensed:style=Condensed Bold Italic,Bold Italic
DejaVu Serif,DejaVu Serif Condensed:style=Condensed Bold,Bold
DejaVu Sans,DejaVu Sans Condensed:style=Condensed Oblique,Oblique
DejaVu Sans Mono:style=Bold Oblique
DejaVu Serif:style=Bold Italic
DejaVu Sans:style=Bold Oblique
DejaVu Sans:style=Oblique
DejaVu Sans Mono:style=Oblique
DejaVu Sans,DejaVu Sans Condensed:style=Condensed Bold Oblique,Bold Oblique
DejaVu Sans,DejaVu Sans Light:style=ExtraLight
DejaVu Sans,DejaVu Sans Condensed:style=Condensed,Book
DejaVu Sans,DejaVu Sans Condensed:style=Condensed Bold,Bold
DejaVu Serif,DejaVu Serif Condensed:style=Condensed Italic,Italic
DejaVu Sans:style=Bold
DejaVu Sans:style=Book
DejaVu Serif:style=Italic
DejaVu Sans Mono:style=Book
DejaVu Sans Mono:style=Bold
DejaVu Serif:style=Book
DejaVu Serif:style=Bold

Emacs-X has this problem too(http://picpaste.com/emacs-fjNEwAKQ.png).
Any idea? Thanks  in advance!

-- 
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Yes, I use Debian GNU/L
wolf python london(WPL)
Do as you soul should do !
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