Mike 21, problem with presentation of results - water depth

Hi, I am a MIKE 21 user and I have a problem with the presentation of results. When I try to generate the flow results with the water depth presentation, the entire model area beyond the actual discharge is uniformly colored. I would like to remove this background so that I can plot the results on a map. This problem does not occur with the current speed analysis. In attachement I am sending screen of the problem.  I would be grateful for your help. Krzysztof