--- loncom/homework/structuretags.pm	2005/11/03 11:10:25	1.308
+++ loncom/homework/structuretags.pm	2005/11/03 11:32:00	1.309
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.308 2005/11/03 11:10:25 foxr Exp $
+# $Id: structuretags.pm,v 1.309 2005/11/03 11:32:00 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -693,7 +693,7 @@ sub start_problem {
 	    # The big change; Due do the comparison on 
 	    # the absolute time rather than textual time since that is format independent.
 	    #
-	    if ($due_file_content ne $duetime) {
+	    if ($due_file_content != $duetime) {
 		$temp_file = Apache::File->new('>'.$filename);
 		print $temp_file "$duetime\n";
 		if (not $env{'request.symb'} =~ m/\.page_/) {
@@ -716,6 +716,7 @@ sub start_problem {
 		}
 	    }
 	}
+	&Apache::lonxml::startredirection; # We'll do redirection to deal with duedates.
     } elsif ($target eq 'edit') {
 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
 	    &problem_edit_header();
@@ -736,6 +737,9 @@ sub start_problem {
 sub end_problem {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';
+    if ($target eq 'tex') {
+	$result = &Apache::lonxml::endredirection;
+    }
     my $status=$Apache::inputtags::status['-1'];
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
 	$target eq 'tex') {