[GRASS-user] r.terraflow: what's wrong?

[FAROUX STEPHANIE]

Hello,
I tried this command:

r.terraflow.short -s elev=world_dem4 filled=world_dem4_filled 
dir=world_dem4_mfdir swatershed=world_dem4_watershed 
accumulation=world_dem4_accu tci=world_dem4_tci memory=1000 
STREAM_DIR=/home/faroux/ --overwrite

(world_dem4 is the gtopo30 dem)

the first filled, dir and swatershed seems to well end; but when 
arriving at accumulation ant tci, there are a lot of messages:
warning tci has negative values
And when i draw it, there are many, many negative values everywhere.

Anybody can help me?

Thank you

Stéphanie