[ovirt-users] oVirt engine installation with Oracle Virtualbox

Hello, I am a new user of oVirt. I am trying to install oVirt all in one version 3.5.1 in my windows vista/7 system with Oracle VirtualBox 4.3.10. When I create a new virtual machine in VirtualBox,what should I choose for OS and memory setting for proper booting iso file. When I tried to boot, the blue screen appears with CentOS written and it says automaic boot in 10sec,9 sec,8 sec....... after 0 sec nothing hapens. It gets struck there. What might be wrong? Regards Nasim Banu