[CentOS] get widescreen 1280x800 for intel 965GM chipset

Dear All,

I come from FreeBSD world. This is my first time setting up a CentOS
on my laptop Dell Vostro 1400 with intel 965GM chipset. I am having problem
here and need your help.

I have 5.1 release installed.

I have trouble to get 1280x800 resolution. The driver used is I810. I don't know
if the chipset is too new for the xorg driver, and can anyone tell me
if there is a fix,
maybe with 915resolution?

Any information is helpful. Thanks here in advance.

-Chen