X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FSeqCanvas.java;h=c4424655edc22241d5fc2c48aab764569b5101ea;hb=b14411143cbfb4d311f68b3d3b73a645bf8200e8;hp=789fb3f5b48d74c72947183755a55bf0aaf6e425;hpb=6e71f42b0a3713ddbc3054e7ea9d8f5088130ec9;p=jalview.git

diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index 789fb3f..c442465 100755
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -219,8 +219,9 @@ public class SeqCanvas
   // Set this to false to force a full panel paint
   public void paintComponent(Graphics g)
   {
-    if (fastPaint  ||  getWidth() !=  g.getClipBounds().width
-                   ||  getHeight() != g.getClipBounds().height)
+    if (img!=null
+        && (fastPaint  ||  getWidth() !=  g.getClipBounds().width
+            ||  getHeight() != g.getClipBounds().height))
     {
       g.drawImage(img, 0, 0, this);
       fastPaint = false;