I haven't actually added any sound to mine. I'm not sure what I'm going to use. I was hoping to figure out how to encode it into 5 channels and thus do some fun effects with it, but I don't know how to do that yet.
1. As to the globe disappearing, I think you may just have to zoom out. To do that, it the - key on the number pad. You can scroll around the window by holding ctrl and pressing 8,6,4,2.
2. The reason you may have use backspace and delete, is that blender remembers where the cursor was when I last edited the file. Apprently, I had it somewhere in the middle.
2a. Let me see you're right, it does disappear when editing. I'm not sure why it does that. I have only been using blender this past week.
2b. To re lineup your text you can select it and then click on the object menu, and then on transform. You'll see the options move on axis and scale on axis. the x axis is left and right and z is up and down. Choose the local opion to make it simplier.
3. You'll want to make sure you render after frame 550. Before that point it is set to be transparent.
4. I am assuming that you are having a problem to get the text to move around the earth. My suggestions is to be looking straight down (7), then select the arm that comes out of the earth. Press r and as you move the mouse around it should swing the text around the earth.
I know lots of my answers include should, but I hope it is similar for you.
Answering questions are no problem in this, since I have a graps of what is going on in the file, since i have messed it up enough times. Let me know if you have any more questions, I'll be checking the thread.
Descartes walks into a bar. The bartender says, "Wine?" Descartes says, "I think not," and disappears.