Description of problem:
With virt-manager 0.5.3-10, I cannot connect to a Xen hypervisor via xen+ssh. I always get the following traceback:

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Fri, 31 Oct 2008 12:02:35 virt-manager 4411] ERROR (connection:369) Unable to open connection to hypervisor URI 'xen+ssh://root@dhcp-lab-135/':
libvirt.libvirtError virConnectOpenReadOnly() failed Connection reset by peer
Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/connection.py", line 351, in _open_thread
    self.vmm = libvirt.openReadOnly(self.uri)
  File "/usr/lib/python2.4/site-packages/libvirt.py", line 132, in openReadOnly
    if ret is None:raise libvirtError('virConnectOpenReadOnly() failed')
libvirtError: virConnectOpenReadOnly() failed Connection reset by peer
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What's weird is that I can connect just fine with plain CLI virsh:
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# virsh --connect xen+ssh://dhcp-lab-135
IRC #brno: dkovalsk, ebenes

root@dhcp-lab-135's password:
Welcome to virsh, the virtualization interactive terminal.

Type:  'help' for help with commands
       'quit' to quit

virsh #
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Version-Release number of selected component (if applicable):
virt-manager-0.5.3-10.el5

How reproducible:
always

Steps to Reproduce:
1. launch virt-manager, try to connect to a hypervisor via xen+ssh
  
Actual results:
traceback

Expected results:
open connection

Additional info:
$ rpm -qa \*virt\*
libvirt-python-0.3.3-14.el5
virt-manager-0.5.3-10.el5
libvirt-0.3.3-14.el5
python-virtinst-0.300.2-11.el5