diff --git a/source/java/org/alfresco/web/bean/dialog/BaseDialogBean.java b/source/java/org/alfresco/web/bean/dialog/BaseDialogBean.java
index eeef78b4c9..c61d2db421 100644
--- a/source/java/org/alfresco/web/bean/dialog/BaseDialogBean.java
+++ b/source/java/org/alfresco/web/bean/dialog/BaseDialogBean.java
@@ -47,6 +47,7 @@ import org.alfresco.web.bean.BrowseBean;
 import org.alfresco.web.bean.NavigationBean;
 import org.alfresco.web.bean.repository.Repository;
 import org.alfresco.web.config.DialogsConfigElement.DialogButtonConfig;
+import org.alfresco.web.ui.common.ReportedException;
 import org.alfresco.web.ui.common.Utils;
 
 /**
@@ -124,7 +125,7 @@ public abstract class BaseDialogBean implements IDialogBean, Serializable
          try
          {
             // Execute
-            outcome = txnHelper.doInTransaction(callback);
+            outcome = txnHelper.doInTransaction(callback, false, true);
             
             // allow any subclasses to perform post commit processing 
             // i.e. resetting state or setting status messages
@@ -138,9 +139,11 @@ public abstract class BaseDialogBean implements IDialogBean, Serializable
          {
             // reset the flag so we can re-attempt the operation
             isFinished = false;
-            
-            Utils.addErrorMessage(formatErrorMessage(e), e);
             outcome = getErrorOutcome(e);
+            if (e instanceof ReportedException == false)
+            {
+                Utils.addErrorMessage(formatErrorMessage(e), e);
+            }
             ReportedException.throwIfNecessary(e);
          }
       }
@@ -353,7 +356,7 @@ public abstract class BaseDialogBean implements IDialogBean, Serializable
     * @return The outcome
     */
    protected abstract String finishImpl(FacesContext context, String outcome)
-      throws Exception;
+      throws Throwable;
 
    /**
     * Performs any post commit processing subclasses may want to provide
diff --git a/source/java/org/alfresco/web/ui/common/ReportedException.java b/source/java/org/alfresco/web/ui/common/ReportedException.java
new file mode 100644
index 0000000000..8fb1488f5a
--- /dev/null
+++ b/source/java/org/alfresco/web/ui/common/ReportedException.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2005-2009 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+package org.alfresco.web.ui.common;
+
+/**
+ * Unchecked exception wrapping an already-reported exception.  The dialog code can use this to
+ * detect whether or not to report further to the user.
+ * 
+ * @author Derek Hulley
+ * @since 3.1
+ */
+public class ReportedException extends RuntimeException
+{
+    private static final long serialVersionUID = -4179045854462002741L;
+
+    public ReportedException(Throwable e)
+    {
+        super(e);
+    }
+}
diff --git a/source/java/org/alfresco/web/ui/common/Utils.java b/source/java/org/alfresco/web/ui/common/Utils.java
index 908ad5b627..04ad5a6b5c 100644
--- a/source/java/org/alfresco/web/ui/common/Utils.java
+++ b/source/java/org/alfresco/web/ui/common/Utils.java
@@ -44,6 +44,7 @@ import javax.faces.el.EvaluationException;
 import javax.faces.el.MethodBinding;
 import javax.faces.event.AbortProcessingException;
 import javax.faces.event.ActionEvent;
+import javax.transaction.UserTransaction;
 
 import org.alfresco.config.ConfigElement;
 import org.alfresco.error.AlfrescoRuntimeException;
@@ -56,6 +57,7 @@ import org.alfresco.jlan.server.filesys.FilesystemsConfigSection;
 import org.alfresco.model.ApplicationModel;
 import org.alfresco.model.ContentModel;
 import org.alfresco.repo.security.permissions.AccessDeniedException;
+import org.alfresco.repo.transaction.RetryingTransactionHelper;
 import org.alfresco.repo.webdav.WebDAVServlet;
 import org.alfresco.service.cmr.dictionary.DictionaryService;
 import org.alfresco.service.cmr.model.FileFolderService;
@@ -814,6 +816,20 @@ public final class Utils extends StringUtils
     */
    public static void addErrorMessage(String msg, Throwable err)
    {
+      UserTransaction txn = RetryingTransactionHelper.getActiveUserTransaction();
+      if (txn != null)
+      {
+          // We're in a transaction and need to ensure that we ONLY rollback
+          try
+          {
+              txn.setRollbackOnly();
+          }
+          catch (Throwable e)
+          {
+              // Ignore
+          }
+      }
+       
       FacesContext context = FacesContext.getCurrentInstance( );
       FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR, msg, msg);
       context.addMessage(null, facesMsg);