[GRASS-user] vector problems: Bad file descriptor: Files under Win7

Dear all,

I extracted drainage from DEM using r.stream.extract using several thresholds.
I don’t know why I can export the vectors generated using some threshols (50 and 1000),
but for others (500 and 2000) I get error messages (Bad file descriptor: Files) when
exporting with v.out.ogr …
To complicate a little bit more, the same file I exported without problem (threshols=50),
I don’t know why I get the same error message (Bad file descriptor: Files) when
trying rasterized the heads using:
v.to.rast input=My_vetor_th0050 output=My_vetor_th0050_HEADS type=point use=attr column=type_code

I am running all this under Windos 7.
Any help are welcome.

cheers

milton