[COOT] Cannot display 2Fo-Fc maps in coot

[Kelly Hew]

Hi,

I have recently upgraded my coot version from 0.6 to 0.7. But when I open my 
mtz files, I am very puzzled why the 2Fo-Fc maps doesn't load. All the green 
and red blobs I see in the old 0.6 version does not seem to be present in both 
0.6.2 and 0.7.

Thanks!