[Qgis-user] Invalid geometry

[Sergio A Estay]

Hi everybody,

 From the last actualization from QGIS 1.7.4 to 1.8.0 all my shp files 
have "invalid geometry". For that reason now I can't make intersection 
between vector layers. Previous to the actualization everything works 
fine (using the same vector files).

Any idea if  is this a problem of my personal configuration of the 
software  or just a bug of the new version??

Thanks

Sergio

-- 
Sergio A. Estay
Inst. Ciencias Ambientales y Evolutivas
Universidad Austral de Chile
Casilla 567, Valdivia, Chile
Phone: 5663-293913
http://www.ciencias.uach.cl/instituto/ciencias_ambientales_evolutivas/academicos/sergio-estay.php