Hi!
With totally identical set of files,
here the GoogleMap plugin works: http://www.boothmodels.de/layout/vtour/tour.html
And here it gives an error (missing-key-map-error): http://rw-creative.de/vtour/tour.html
The GoogleMaps key used is valid and works with other examples:
http://www.boothmodels.de/layout/vtour/gm.html
http://rw-creative.de/vtour/gm.html
Any ideas?
Thanks in advance