There are quite a few fixes in the upstream release of virt-viewer related to handling multiple monitors. These changes fix quite a few bugs but are difficult to cherry-pick into the existing RHEL6 packages. Rebasing to 0.6.0 will require a rebase of spice-gtk to 0.22.
the spice-gtk 0.22 rebase introduced a tls switching regression. It is fixed by the following patch: http://lists.freedesktop.org/archives/spice-devel/2014-August/017244.html moving back to POST
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2015-0197.html