Index: lams_learning/src/java/org/lamsfoundation/lams/learning/export/ActivityPortfolio.java
===================================================================
diff -u -r08950e1090443c3423a3d1c587416a2fccd8bbdf -ra47f62d9ef96db1cddec04678d6d828f37c23d81
--- lams_learning/src/java/org/lamsfoundation/lams/learning/export/ActivityPortfolio.java	(.../ActivityPortfolio.java)	(revision 08950e1090443c3423a3d1c587416a2fccd8bbdf)
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/export/ActivityPortfolio.java	(.../ActivityPortfolio.java)	(revision a47f62d9ef96db1cddec04678d6d828f37c23d81)
@@ -40,6 +40,7 @@
 	private List childPortfolios;
 	/* The link to the tool page from the main export page */
 	private String toolLink;
+	private boolean headingNoPage;
 		
 	/**
 	 * @return Returns the toolLink.
@@ -62,6 +63,7 @@
 		this.exportUrl = null;
 		this.toolLink = null;
 		this.childPortfolios = null;
+		this.headingNoPage = false;
 	}
 	
 	
@@ -124,6 +126,17 @@
 	public void setChildPortfolios(List childPortfolios) {
 		this.childPortfolios = childPortfolios;
 	}
+	/** Generate just a heading for this portfolio, don't try to link to a page. This is 
+	 * used for Parallel and Sequence activities in both learner and teacher modes,
+	 * and for Branching in learner mode.
+	 * @return
+	 */
+	public boolean isHeadingNoPage() {
+		return headingNoPage;
+	}
+	public void setHeadingNoPage(boolean headingNoPage) {
+		this.headingNoPage = headingNoPage;
+	}
 	
 	
 }
Index: lams_learning/src/java/org/lamsfoundation/lams/learning/export/service/ExportPortfolioService.java
===================================================================
diff -u -rccf0c98665da622cc43ff39393de652596752cdf -ra47f62d9ef96db1cddec04678d6d828f37c23d81
--- lams_learning/src/java/org/lamsfoundation/lams/learning/export/service/ExportPortfolioService.java	(.../ExportPortfolioService.java)	(revision ccf0c98665da622cc43ff39393de652596752cdf)
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/export/service/ExportPortfolioService.java	(.../ExportPortfolioService.java)	(revision a47f62d9ef96db1cddec04678d6d828f37c23d81)
@@ -338,7 +338,7 @@
 			String relativePath = activitySubDirectory.substring(FileUtil.TEMP_DIR.length()+1, activitySubDirectory.length());
 			
 			// Some activities (parallel, optional, sequence) don't have export urls.
-			if ( activityPortfolio.getExportUrl() != null ) {
+			if ( ! activityPortfolio.isHeadingNoPage() ) {
 				activityPortfolio.setExportUrl( ExportPortfolioConstants.HOST + activityPortfolio.getExportUrl() );
 				activityPortfolio.setExportUrl( WebUtil.appendParameterToURL(activityPortfolio.getExportUrl(), AttributeNames.PARAM_DIRECTORY_NAME, relativePath) );
 
Index: lams_learning/src/java/org/lamsfoundation/lams/learning/export/service/PortfolioBuilder.java
===================================================================
diff -u -rccf0c98665da622cc43ff39393de652596752cdf -ra47f62d9ef96db1cddec04678d6d828f37c23d81
--- lams_learning/src/java/org/lamsfoundation/lams/learning/export/service/PortfolioBuilder.java	(.../PortfolioBuilder.java)	(revision ccf0c98665da622cc43ff39393de652596752cdf)
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/export/service/PortfolioBuilder.java	(.../PortfolioBuilder.java)	(revision a47f62d9ef96db1cddec04678d6d828f37c23d81)
@@ -127,6 +127,11 @@
 			String exportURL = getExportURLForSystemTool(activity);
 			complexPortfolio = complexPortfolio == null ? createActivityPortfolio(activity) : complexPortfolio;
 			complexPortfolio.setExportUrl(exportURL);
+			// if there isn't a url, we assume we just want a heading
+			complexPortfolio.setHeadingNoPage(exportURL == null);
+		} else {
+			// sequence, parallel, etc
+			complexPortfolio.setHeadingNoPage(true);
 		}
 		
 		currentPortfolioList = (ArrayList<ActivityPortfolio>) activityListStack.pop();
@@ -147,12 +152,12 @@
 			return;
 		}
 
-		ActivityPortfolio p = createActivityPortfolio(activity);
 		String exportUrlForTool = null;
 		
 		if ( activity.isToolActivity() ) {
 			
-			/* if the tool does not have an export url, use the url that points to the servlet that generates a page saying that the export is not supported */
+			// if the tool does not have an export url, then the processor will include an "not supported" error page
+			
 			ToolActivity toolActivity = (ToolActivity) activity;
 			Tool tool = toolActivity.getTool();	
 			if (accessMode == ToolAccessMode.LEARNER)
@@ -179,15 +184,22 @@
 					exportUrlForTool = WebUtil.appendParameterToURL(exportUrlForTool, AttributeNames.PARAM_TOOL_CONTENT_ID, toolActivity.getToolContentId().toString());
 				}
 			}
+
+			ActivityPortfolio p = createActivityPortfolio(activity);
+			p.setExportUrl(exportUrlForTool);
+			currentPortfolioList.add(p);
 			
 		} else if ( activity.isSystemToolActivity() ) {
+			
 			exportUrlForTool = getExportURLForSystemTool(activity);
+			if ( exportUrlForTool != null ) {
+				ActivityPortfolio p = createActivityPortfolio(activity);
+				p.setExportUrl(exportUrlForTool);
+				currentPortfolioList.add(p);
+			}
 		} 
+
 		
-		p.setExportUrl(exportUrlForTool);
-		
-		currentPortfolioList.add(p);
-		
 	}
 
 	/**