[GRASS-user] blank display

[Sramkova, Anna]

Hello,

I'm a brand new GRASS user and I only need it for a very specific task: I'm using an ASCII raster map (created in Arc) of the world for spatial simulations in population genetics.
Currently, the land is represented by 1s and water by 0s. I want to specify arbitrary regions that will be represented by different numbers. By searching the forums, I figured
out that I can use r.digit for this purpose.

My problem is, that when I call r.digit with the bgcmd "d.rast map=<nameofmap>", only blank screen is displayed.
Using:
         d.mon x0
         g.region map=<nameofmap>
         d.rast map=<nameofmap>
also produces only blank screen.

With he digitize button in the GUI, I can run the digitizing tool and chance the map and save it....I still can't see anything in the display monitor though!..i.e. I randomly
changed some area of the map and displayed the new map in the map display and saw that the area really changed.

What am I doing wrong?

I did manage to display the map in the map window, and even run d.rast.edit successfully, so I don't understand where the problem is.

Thanks

Anna