VNC screens become garbled

[Peter]

When there is movement in VNC screens, artifacts remain from the old image. Attaching screen shot.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: vinagre 3.2.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 24 11:12:28 2011
ExecutablePath: /usr/bin/vinagre
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: vinagre
UpgradeStatus: Upgraded to oneiric on 2011-10-18 (6 days ago)
XsessionErrors:
 (vino-server:5997): EggSMClient-CRITICAL **: egg_sm_client_set_mode: assertion `global_client == NULL || global_client_mode == EGG_SM_CLIENT_MODE_DISABLED' failed
 (nautilus:6012): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
 (nautilus:6012): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed