Index: trunk/kernel/units/general/main_event_handler.php
===================================================================
diff -u -N -r6093 -r6428
--- trunk/kernel/units/general/main_event_handler.php	(.../main_event_handler.php)	(revision 6093)
+++ trunk/kernel/units/general/main_event_handler.php	(.../main_event_handler.php)	(revision 6428)
@@ -83,10 +83,14 @@
 				$ret .= $theme_name.'/';
 			}
 
-			if ($processed_params['m_cat_id'] > 0) {
+			if ($processed_params['m_cat_id'] > 0 && isset($url_params['pass_category']) && $url_params['pass_category']) {
 				$ret .= $this->Application->getFilename('c', $processed_params['m_cat_id']).'/';
 				$url_params['category_processed'] = true;
 			}
+			else {
+//				$url_params['no_category'] = 1; // for debugging
+			}
+			unset($url_params['pass_category']); // unset it just in case
 
 			$force_page_adding = false;
 			if (getArrayValue($url_params, 'reset'))