[Users] Failed to start VM

Hi I setup ovirt with vdsm on the CentOS 6.2 x64 . I configured anything correctly. I defined ISO Domain and Data Domain for iso file and virtual machine file under NFS storage. I made new virtual server with CentOS 6.2 x64 and assigned redhat 6.2 x64 as linux type. But when i start VM it failed to start. I read libvirtd log and it write a error on libvirtd.log: 2012-04-25 21:04:59.952+0000: 1705: error : qemuProcessReadLogOutput:1005 : internal error Process exited while reading console log output: Supported machines are: pc RHEL 6.2.0 PC (alias of rhel6.2.0) rhel6.2.0 RHEL 6.2.0 PC (default) rhel6.1.0 RHEL 6.1.0 PC rhel6.0.0 RHEL 6.0.0 PC rhel5.5.0 RHEL 5.5.0 PC rhel5.4.4 RHEL 5.4.4 PC rhel5.4.0 RHEL 5.4.0 PC What is the problem. I'm experience user on RHEL with 10 more years work as administrator and i have good knowledge about KVM and virt manager but i'm semi-pro on ovrit! Thanks for help