diff --git a/Scrum/Scrum.php b/Scrum/Scrum.php
index 9ec263c..5be5b55 100644
--- a/Scrum/Scrum.php
+++ b/Scrum/Scrum.php
@@ -21,7 +21,7 @@ public function register()
 
 		$this->version = "0.3";
 		$this->requires = array(
-			"MantisCore" => "1.2.6",
+			"MantisCore" => "1.2.6, <1.3.99",
 		);
 		$this->uses = array(
 			"Source" => "0.16",
diff --git a/Scrum/pages/board.php b/Scrum/pages/board.php
index e67cb99..7ac7aae 100644
--- a/Scrum/pages/board.php
+++ b/Scrum/pages/board.php
@@ -3,7 +3,7 @@
 # Copyright (c) 2011 John Reese
 # Licensed under the MIT license
 
-require_once( 'icon_api.php' );
+require_api( 'icon_api.php' );
 
 $current_project = helper_get_current_project();
 $project_ids = current_user_get_all_accessible_subprojects( $current_project );
@@ -246,7 +246,7 @@
 					<option value=""><?php echo plugin_lang_get( 'all' ) ?></option>
 					<?php foreach( array_keys( $categories ) as $category_name ): ?>
 					<option value="<?php echo $category_name ?>" <?php
-						check_selected( $category, $category_name ); ?>>
+						check_selected( empty($category) ? "" : $category, $category_name ); ?>>
 						<?php echo $category_name ?>
 					</option>
 					<?php endforeach ?>