I Renderer, I think HORDE_LIBS is missing? RCS file: /repository/framework/Form/Form/Renderer.php,v retrieving revision 1.150 diff -w -b -r1.150 Renderer.php 52c52 < require_once 'Horde/UI/VarRenderer.php'; --- > require_once HORDE_LIBS . 'Horde/UI/VarRenderer.php';