[Gfoss] QGIS: Errore python con plugin Shaded Relief

Ciao a tutti, utilizzo QGIS 1.4.0 Enceladus su Windows XP

utilizzando il plugin Shaded relief, mi appare questo errore:

Errore python:

Traceback (most recent call last):
  File "C:/Documents and Settings/pietro.dorio/.qgis//python/plugins\shadedrelief\ShadedReliefDialog.py", line 82, in accept
    myEngine.run()
  File "C:/Documents and Settings/pietro.dorio/.qgis//python/plugins\shadedrelief\ShadedReliefEngine.py", line 57, in run
    gr = numpy.gradient(numpy.array(rastergdal.layerAsArray(str(self.sourceFileParam)))*self.vzParam)
  File "C:/Programmi/Quantum GIS Enceladus/./python\numpy\lib\function_base.py", line 700, in gradient
    out[slice1] = (f[slice2] - f[slice3])/2.0
MemoryError

Versione Python:
2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)]

Percorso Python: ['../build/lib.darwin-8.8.1-i386-2.3/', 'C:/Programmi/Quantum GIS Enceladus/./python', 'C:/Documents and Settings/pietro.dorio/.qgis//python', 'C:/Documents and Settings/pietro.dorio/.qgis//python/plugins', 'C:/Programmi/Quantum GIS Enceladus/./python/plugins', 'C:\\Programmi\\Quantum GIS Enceladus\\bin\\python25.zip', '.\\DLLs', '.\\lib', '.\\lib\\plat-win', '.\\lib\\lib-tk', 'C:\\Programmi\\Quantum GIS Enceladus\\bin', 'C:\\Programmi\\Quantum GIS Enceladus\\python\\plugins\\fTools\\tools']

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Dott. Pietro d'Orio

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