Index: trunk/core/kernel/application.php
===================================================================
diff -u -r2199 -r2268
--- trunk/core/kernel/application.php	(.../application.php)	(revision 2199)
+++ trunk/core/kernel/application.php	(.../application.php)	(revision 2268)
@@ -138,6 +138,8 @@
 		
 		if( !$this->GetVar('m_lang') ) $this->SetVar('m_lang', $this->GetDefaultLanguageId() );
 		if( !$this->GetVar('m_theme') ) $this->SetVar('m_theme', $this->GetDefaultThemeId() );
+		if( $this->GetVar('m_cat_id') === false ) $this->SetVar('m_cat_id', 0);
+		
 		$this->Phrases = new PhrasesCache( $this->GetVar('m_lang') );
 		
 		$this->SetVar('lang.current_id', $this->GetVar('m_lang') );