[CentOS] qemu-kvm update from 0.12.5 to 0.14 on centos 5.6

Hi all

I just update the package above. on 0.12 my qemu window opened on my X 
server as a window.
Now it starting in a VNC session.

How do I get it back to opening in a window on the X screen as the default?

Thanks,

Jerry