[CentOS] centos 5 with mplayer and xv driver

Hi all

I am trying to get mplayer working on centos 5.
On centos 4.X I just did a ./configure and make and make install for 
mplayer.... Can use prepaged mplayer for other reasons.

anyway, when I play a video I cannot get it to use the xv driver 
(acceleated video).
What package might I be missing or not installed to get the xv driver ???

I am using the binary nvidia drivers (latest version).

Thanks so much...

Jerry