Does it come up with a message saying "having trouble contacting terraserver", or does it just sit there with
downloading tiles?
If the latter, you need to look at where in the world are you centered. Try loading one of the sample tracks (from brian head), then double click on it so that the map centers the view on the track. It's possible you're over the pacific ocean or something. Sometimes it will hang on downloading tiles in certain areas of the world.