Index: D:/svn/ossrepo/icepdf/branches/icepdf-5.0.1/icepdf/viewer/src/org/icepdf/ri/common/views/PageViewComponentImpl.java
===================================================================
--- D:/svn/ossrepo/icepdf/branches/icepdf-5.0.1/icepdf/viewer/src/org/icepdf/ri/common/views/PageViewComponentImpl.java	(revision 36192)
+++ D:/svn/ossrepo/icepdf/branches/icepdf-5.0.1/icepdf/viewer/src/org/icepdf/ri/common/views/PageViewComponentImpl.java	(revision )
@@ -103,6 +103,7 @@
 
     private PageTree pageTree;
     private JScrollPane parentScrollPane;
+    private int previousScrollValue;
     private int pageIndex;
 
     private Rectangle pageSize = new Rectangle();
@@ -1083,9 +1084,13 @@
             // if we are scrolling, no new threads
             if (!disposing) {
 
-                // we don't want to draw if we are scrolling
+                // calculate the number of pixels moved
+                int diff = Math.abs(previousScrollValue -
+                        parentScrollPane.getVerticalScrollBar().getValue());
+                previousScrollValue = parentScrollPane.getVerticalScrollBar().getValue();
+                // we don't want to draw if scroll distance is great then 150 px.
                 if (parentScrollPane != null &&
-                        parentScrollPane.getVerticalScrollBar().getValueIsAdjusting()) {
+                        diff > 150) {
                     return;
                 }
                 final Page page = pageTree.getPage(pageIndex);