diff --git a/com.minres.scviewer.e4.application/META-INF/MANIFEST.MF b/com.minres.scviewer.e4.application/META-INF/MANIFEST.MF
index 7c8389f..8407a07 100644
--- a/com.minres.scviewer.e4.application/META-INF/MANIFEST.MF
+++ b/com.minres.scviewer.e4.application/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %Bundle-Name
 Bundle-SymbolicName: com.minres.scviewer.e4.application;singleton:=true
-Bundle-Version: 2.1.1.qualifier
+Bundle-Version: 2.1.2.qualifier
 Bundle-Vendor: %Bundle-Vendor
 Require-Bundle: javax.inject;bundle-version="1.0.0",
   org.eclipse.core.runtime;bundle-version="3.11.1",
diff --git a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/DesignBrowser.java b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/DesignBrowser.java
index f2444fa..b9a92dd 100644
--- a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/DesignBrowser.java
+++ b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/DesignBrowser.java
@@ -199,12 +199,16 @@ public class DesignBrowser {
 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
 				ISelection selection=event.getSelection();
-				if( selection instanceof IStructuredSelection) {
+				if( selection instanceof IStructuredSelection) { 
 					Object object= ((IStructuredSelection)selection).getFirstElement();			
-					if(object instanceof IHierNode&& ((IHierNode)object).getChildNodes().size()!=0){
+					if(object instanceof IHierNode && ((IHierNode)object).getChildNodes().size()!=0){
 						txTableViewer.setInput(object);
 						updateButtons();
 					}
+					else { //if selection is changed but empty
+						txTableViewer.setInput(null);
+						updateButtons();
+					}
 				}
 			}
 		});
@@ -250,8 +254,8 @@ public class DesignBrowser {
 			
 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
-					selectionService.setSelection(event.getSelection());
-					updateButtons();
+				selectionService.setSelection(event.getSelection());
+				updateButtons();
 			}
 		});
 
diff --git a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
index 26d42c6..27bd372 100644
--- a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
+++ b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
@@ -249,6 +249,10 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 		});
 		waveformPane = factory.createPanel(parent);
 		waveformPane.setMaxTime(0);
+		
+		//set selection to empty selection when opening a new waveformPane
+		selectionService.setSelection(new StructuredSelection());
+		
 		waveformPane.addPropertyChangeListener(IWaveformViewer.CURSOR_PROPERTY, new PropertyChangeListener() {
 			@Override
 			public void propertyChange(PropertyChangeEvent evt) {
@@ -268,11 +272,13 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 				eventBroker.post(WaveStatusBarControl.MARKER_DIFF, waveformPane.getScaledTime(cursor - time));
 			}
 		});
+		
 		waveformPane.addSelectionChangedListener(new ISelectionChangedListener() {
 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
-				if (event.getSelection() instanceof IStructuredSelection)
+				if (event.getSelection() instanceof IStructuredSelection) {
 					selectionService.setSelection(event.getSelection());
+				}
 			}
 		});
 		waveformPane.getWaveformControl().addMouseTrackListener(new MouseTrackListener() {
diff --git a/com.minres.scviewer.ui/src/com/minres/scviewer/ui/Hex.java b/com.minres.scviewer.ui/src/com/minres/scviewer/ui/Hex.java
new file mode 100644
index 0000000..c68ed72
--- /dev/null
+++ b/com.minres.scviewer.ui/src/com/minres/scviewer/ui/Hex.java
@@ -0,0 +1,36 @@
+package com.minres.scviewer.ui;
+public final class Hex {
+    public static byte[] decode(final String hex) {
+        if (hex.length() % 2 != 0) {
+            throw new IllegalArgumentException("A hex string must contain an even number of characters: " + hex);
+        }
+
+        byte[] out = new byte[hex.length() / 2];
+
+        for (int i = 0; i < hex.length(); i += 2) {
+            int high = Character.digit(hex.charAt(i), 16);
+            int low = Character.digit(hex.charAt(i + 1), 16);
+            if (high == -1 || low == -1) {
+                throw new IllegalArgumentException("A hex string can only contain the characters 0-9, A-F, a-f: " + hex);
+            }
+
+            out[i / 2] = (byte) (high * 16 + low);
+        }
+
+        return out;
+    }
+
+    private static final char[] UPPER_HEX_DIGITS = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', };
+
+    public static String encode(final byte[] bytes) {
+        StringBuilder stringBuilder = new StringBuilder(bytes.length * 2);
+        for (byte cur : bytes) {
+            stringBuilder.append(UPPER_HEX_DIGITS[(cur >> 4) & 0xF]);
+            stringBuilder.append(UPPER_HEX_DIGITS[(cur & 0xF)]);
+        }
+        return stringBuilder.toString();
+    }
+
+    private Hex() {
+    }
+}
\ No newline at end of file
diff --git a/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorInputFactory.java b/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorInputFactory.java
index fae3c0c..cb58c0b 100644
--- a/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorInputFactory.java
+++ b/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorInputFactory.java
@@ -71,7 +71,7 @@ public class TxEditorInputFactory implements IElementFactory {
             String listData = memento.getString(TAG_STREAMLIST);
             if (listData != null) {
 				try {
-	    	        ByteArrayInputStream bais = new ByteArrayInputStream(javax.xml.bind.DatatypeConverter.parseHexBinary(listData));
+	    	        ByteArrayInputStream bais = new ByteArrayInputStream(Hex.decode(listData));
 	    	        ObjectInputStream ois = new ObjectInputStream(bais);
 	    	        Object obj = ois.readObject();
 	    	        if(obj instanceof List<?>)
@@ -107,8 +107,9 @@ public class TxEditorInputFactory implements IElementFactory {
 	        ByteArrayOutputStream baos = new ByteArrayOutputStream();
 			ObjectOutputStream oos = new ObjectOutputStream(baos);
 	        oos.writeObject(input.getStreamNames());
-	        memento.putString(TAG_STREAMLIST, javax.xml.bind.DatatypeConverter.printHexBinary(baos.toByteArray()));
+	        memento.putString(TAG_STREAMLIST, Hex.encode(baos.toByteArray()));
 		} catch (IOException e) {
 		}
     }
+    
 }