ubuntu 9.10 pxe install

i followed the following procedure to setup a pxe install server:
http://www.howtoforge.com/setting-up-a-pxe-install-server-on-ubuntu-9.10

the pxe client (with over 1g ram) displays text installation mode, not graphical installation mode for "install", "expert install" options.

pxelinux.cfg/default
label install
menu label ^Install
menu default
kernel ubuntu-installer/i386/linux
append initrd=ubuntu-installer/i386/initrd.gz -- quiet

label expert
menu label ^Expert install
kernel ubuntu-installer/i386/linux
append priority=low vga=normal initrd=ubuntu-installer/i386/initrd.gz --


pls advise.

 

What graphics card does the client use? Maybe it's not supported...

 

if i install by dvd, display is ok.