Gmap not appearing in custom view s

Hi,

I have views, location, gmap all installed.

Everything seems to be working. I can select a location and even see the gmap to drag around to pick coordinates.

I want to create a gmap block for my front page.
- The view is working - if I set the style to table, I see a nice table of data
- If I set the style to gmap, I get an empty block. No map, nada, nothing...

Can anybody help with this one?

Thanks,