Index: trunk/kernel/include/theme.php
===================================================================
diff -u -r423 -r479
--- trunk/kernel/include/theme.php	(.../theme.php)	(revision 423)
+++ trunk/kernel/include/theme.php	(.../theme.php)	(revision 479)
@@ -614,6 +614,7 @@
     function SetPrimaryTheme($ThemeId)
     {
     	$theme = $this->GetItem($ThemeId);
+    	$theme->Dirty();
     	if($theme->Get("Enabled")==1)
     	{
           $sql = "UPDATE ".$this->SourceTable." SET PrimaryTheme=0";