Countour plan view

[Vicente Sanz Bra]

Hi all. 

I am from Spain and I am using the IDV for my final degree project.

I'm triying to display a contour plan view and it doesn't appear (I am
trying the pressure at MSL and isotermals etc..). the colour-filled
doesn't appear neither. On the other hand I can display other 2D and 3D
data without any trouble. I think I'm doing it well but nothing.

Does anybody know how can my problem be solved? 

Thanks in advance.                                     
                                                                        
                                                                        
                                          Vicente Sanz.