I ve update my kernel to 2.6.32 and when I try to reboot I was stuck on the blue screen of the mother card (HP intel) :
boot and stop, boot and stop, boot and stop ....

I found a way to escape from this bug, so let's share it up:

I could reboot choosing my last kernel 2.6.31 and use the "init 3" runlevel
then I have to uninstall kmod-nvidia : yum remove kmod-nvidia\*
and change "vesa" driver by "nouveau" in /etc/X11/xorg.conf
finally, reboot

If someone has a better solution to pass over, I looking forward to reading this good news.
so far, I will wait for FC13 or a 2.6.33 without this bug.
does somebody manage to run this kernel on another computer brand?