I rename my wp-content folder in foo-content there for some time. But apparently this poses problems. So I handed wordpress default and everything is back to normal but without knowing why.
Icons representing the possible locations are no longer generated by location-editor.js, on edit-form.php. I realized this problem after updating to 1.5.3 to 1.6.1 (I use GoogleMap V3). Is this also a problem with “Mapstraction” or am I the only one?