[oe] Setting screen size

[Kwan]

Hi all,

My device has a screen size of 800x480, but when I try to run the OE gpe-image 
I compiled, the screen size stays at 640x480 no matter how I set it. I changed 
the /etc/X11/XServer file to supply an argument of "-screen 800x480" to Xfbdev 
but seems like it does not take effect. Is there other configuration file 
somewhere that I could set?

Regards,
Kwan.