[GRASSLIST:3164] Proper input for r.sunmask (GRASS5.3)

[Javier A. Yebrin]

Hi all!
I'm trying to use r.sunmask in order to calculate shadowed areas. My DEM's
resolution is 5x5 meters and it has an extension of 4x4 km.
r.sunmask appears to hang at 0% when calculating shadows for DEM(after
having succesfully calculated sun position). Should i be more patient? or is
it something wrong?
Thanks a lot

Javier Yebrin