d.rast.edit

Dear Grass users

I am having problem with d.rast.edit. everytime when I try to invoke the edit
command from the main menu, I got the following error mesage;

"ERROR: current window resolution does not match cell layer's resolution

     +-------------------------------------------+
     | d.rast.edit aborts |
     +-------------------------------------------+
"
What should I do to get it working.

Thanks for any help

Cheers,
Kamarul