Yes i have checked the path. I'm using Windows xp. I have installed the program via the common install (*.exe) file.

SAGA execution console output ... ERROR 1: Can't load requested DLL: C:\PROGRA~1\Quantum GIS Lisboa\bin\gdalplugins\1.9\gdal_ECW_JP2ECW.dll 126: Das angegebene Modul wurde nicht gefunden. ERROR 1: Can't load requested DLL: C:\PROGRA~1\Quantum GIS Lisboa\bin\gdalplugins\1.9\gdal_ECW_JP2ECW.dll 126: Das angegebene Modul wurde nicht gefunden. ERROR 1: Can't load requested DLL: C:\PROGRA~1\Quantum GIS Lisboa\bin\gdalplugins\1.9\gdal_MG4Lidar.dll 126: Das angegebene Modul wurde nicht gefunden. ...

I have reinstalled the QGis application. I tried another SAGA-module "Clip points with polygons" but it doesnt work. This is the sextante error log:

Yes I did. But when I start the Q-Gis program, an error messege pops up "Could not find the Python bindings for SAGA, which are required to run the this plugin.". Is this maybe a cause?