diff --git a/x0vncserver/PollingManager.cxx b/x0vncserver/PollingManager.cxx
index 3c6be4f..8328101 100644
--- a/x0vncserver/PollingManager.cxx
+++ b/x0vncserver/PollingManager.cxx
@@ -72,6 +72,9 @@
   m_widthTiles = (m_width + 31) / 32;
   m_heightTiles = (m_height + 31) / 32;
 
+  // Get initial screen image.
+  m_image->get(DefaultRootWindow(m_dpy), m_offsetLeft, m_offsetTop);
+
   // Create additional images used in the polling algorithm.
   // FIXME: verify that these images use the same pixel format as in m_image.
   m_rowImage = factory->newImage(m_dpy, m_width, 1);
diff --git a/x0vncserver/x0vncserver.cxx b/x0vncserver/x0vncserver.cxx
index 70a5361..530f60e 100644
--- a/x0vncserver/x0vncserver.cxx
+++ b/x0vncserver/x0vncserver.cxx
@@ -169,12 +169,12 @@
     vlog.info("Enabling %d button%s of X pointer device",
               maxButtons, (maxButtons != 1) ? "s" : "");
 
+    // Create an image for maintaining framebuffer data.
     ImageFactory factory((bool)useShm, (bool)useOverlay);
     image = factory.newImage(dpy, geometry->width(), geometry->height());
-    image->get(DefaultRootWindow(dpy),
-               geometry->offsetLeft(), geometry->offsetTop());
 
-    // FIXME: Duplication in using offsets above and here:
+    // Create polling manager object. It will track screen changes and
+    // keep pixels of the `image' object up to date.
     pollmgr = new PollingManager(dpy, image, &factory,
                                  geometry->offsetLeft(),
                                  geometry->offsetTop());