[libvirt-users] problem in view vm created by virsh create

<domain type='kvm'> <name>eucalyptus-windows</name> <os> <type>hvm</type> <boot dev='cdrom'/> </os> <features> <acpi/> </features> <memory>524288</memory> <vcpu>1</vcpu> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file'> <source file='/root/windows.server_2003_sp2.img'/> <target dev='hda'/> </disk> <disk type='file' device='disk'> <source file='/root/secondary.img'/> <target dev='vda' bus='virtio'/> </disk> <disk type='file' device='floppy'> <source file='/root/floppy.img'/> <target dev='fda'/> </disk> <disk type='file' device='cdrom'> <source file='/root/windows_server_2003_sp2.iso'/> <target dev='hdc'/> <readonly/> </disk> <interface type='bridge'> <source bridge='eucabr899'/> <model type='rtl8139'/> </interface> <!--<interface type='bridge'> <source bridge='br0'/> <model type='virtio'/> </interface> --> <graphics type='vnc' port='-1' listen='0.0.0.0' passwd='123456'/> </devices> </domain> ========================================================= I issue the command of "virsh create libvirt-kvm-windows.xml" to create a vm, and it is successful.Above is the content,but when I try to connect to the VM both try vinagre and virt-manager,what I got is only black screen,I can't understand and please help!