diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
index 5c9cc97..b5a7ba0 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/viewUI.inc
@@ -13,18 +13,6 @@
 * @package presentation.lookAndFeel.knowledgeTree.documentManager
 */
 
-/*function renderHeading() {
-    global $default;
-    $sSectionName = $default->siteMap->getSectionName(substr($_SERVER["PHP_SELF"], strlen($default->rootUrl), strlen($_SERVER["PHP_SELF"])));
-    $sColor = $default->siteMap->getSectionColour($sSectionName, "th");
-    $sToRender  = "<table border=\"0\" width=\"600\">\n";
-    $sToRender .= "<tr align=\"left\"><th class=\"sectionHeading\" bgcolor=\"$sColor\"><font color=\"ffffff\">Document Detail</font></th></tr>\n";
-    $sToRender .= "<tr/>\n";
-    $sToRender .= "<tr/>\n";
-    $sToRender .= "</table>\n";
-    return $sToRender;
-}*/
-
 function renderDocumentPath($oDocument) {
     global $default;
 	$sSectionName = $default->siteMap->getSectionName(substr($_SERVER["PHP_SELF"], strlen($default->rootUrl), strlen($_SERVER["PHP_SELF"])));
@@ -221,7 +209,10 @@ function displayActionButtons($oDocument, $bEdit) {
     }
     $sToRender .= "<td><a onClick=\"alert('This will download a copy of the document and is not the same as Checking Out a document- changes to this downloaded file will not be managed in the DMS.'); return true;\" href=\"" . generateControllerLink("viewDocument", "fDocumentID=" . $oDocument->getID() . "&fForDownload=1") . "\"><img src=\"$default->graphicsUrl/widgets/download.gif\" border=\"0\" /></a></td>\n";    
     $sToRender .= "<td><a href=\"" . generateControllerLink("viewDiscussion", "fDocumentID=" . $oDocument->getID() . "&fForDiscussion=1") . "\"><img src=\"$default->graphicsUrl/widgets/discussion.gif\" border=\"0\" /></a></td>\n";
-    $sToRender .= "<td><a href=\"" . generateControllerLink("archiveDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/archive.gif\" border=\"0\" /></a></td>\n";
+    // only display the archive button for available documents
+    if (!$oDocument->getIsCheckedOut() || !$oDocument->hasCollaboration() || (!DocumentCollaboration::documentCollaborationStarted($oDocument->getID()))) {
+    	$sToRender .= "<td><a href=\"" . generateControllerLink("archiveDocument", "fDocumentID=" . $oDocument->getID()) . "\"><img src=\"$default->graphicsUrl/widgets/archive.gif\" border=\"0\" /></a></td>\n";
+    }
     			
     return $sToRender;
 }
@@ -294,7 +285,7 @@ function getEditPage($oDocument) {
 		//if the current user is responsible for an active step in the collaboration process		
 		$sToRender .= "\t\t<td><table border=\"0\"><tr>\n";
 		$sToRender .= "\t\t<td><b>You currently have an active role<br> in the collaboration process</b></td>\n";
-		// collaboration cannot be started or approved/rejected unless the document is not checked out
+		// collaboration cannot be started or approved/rejected if the document is checked out
 		if (!$oDocument->getIsCheckedOut()) {				
 			$sToRender .= "\t\t<td align=\"center\"><a onClick=\"return confirm('Are you sure you want to approve?  You will not have access to this document until the collaboration process is complete (unless the document is rejected in a subsequent step)');\" href=" . $_SERVER['PHP_SELF'] . "?fDocumentID=" . $oDocument->getID() . "&fCollaborationStepComplete=1><img src=\"$default->graphicsUrl/widgets/approve.gif\" border=\"0\"/></a></td>\n";
 			$sToRender .= "\t\t<td align=\"center\"><a href=\"$default->rootUrl/control.php?action=collaborationStepReject&fDocumentID=$iDocumentID\"><img src=\"$default->graphicsUrl/widgets/reject.gif\" border=\"0\"/></a></td>\n";