Index: branches/RC/core/units/themes/themes_eh.php
===================================================================
diff -u -N -r9236 -r9324
--- branches/RC/core/units/themes/themes_eh.php	(.../themes_eh.php)	(revision 9236)
+++ branches/RC/core/units/themes/themes_eh.php	(.../themes_eh.php)	(revision 9324)
@@ -77,6 +77,8 @@
 		 */
 		function OnChangeTheme(&$event)
 		{
+			$this->Application->SetVar('t', 'index');
+			$this->Application->SetVar('m_cat_id', 0);
 			$this->Application->SetVar('m_theme', $this->Application->GetVar('theme'));
 		}