Hello,
I am just testing the WPF Edition, following the quick start guide. Everything's fine so far, I can display the default map, loading the shape file "countries02.shp" from the SampleData Folder.
But, when I try to load my own shape file (that is in fact the land map from natural earth), while the map is well loading, some tiles are randomly not rendered.
The map unit is also 'decimal degrees', and I have the .dbf and .shx files in the same folder as the .shp file.
I can't figure what is wrong.