No matter how far I zoom out I can't see any map. :-(
You can't control the initial zoom with KML (at least you couldn't when I last checked) -- it just tries to show all your Placemarks in the viewport (provided there aren't more than 80 of them), so if you only have one point it starts well zoomed-in, if you have several it's more sensible. I've tried a couple of example KML files with loads of points, and I get the same problem.
(I did briefly wonder about the possibility of creating invisible points for a one-point KML file to fake a sensible zoom level, but then I lost the will to live...)
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You can't control the initial zoom with KML (at least you couldn't when I last checked) -- it just tries to show all your Placemarks in the viewport (provided there aren't more than 80 of them), so if you only have one point it starts well zoomed-in, if you have several it's more sensible. I've tried a couple of example KML files with loads of points, and I get the same problem.
(I did briefly wonder about the possibility of creating invisible points for a one-point KML file to fake a sensible zoom level, but then I lost the will to live...)
Here's the same example with another point added:
http://maps.google.co.uk/?q=http://www.chiark.greenend.org.uk/~janetmck/oucsmain-2.kml