That's normal if you click 'no' to the question :-). You must then reload the bitmap to make it show up. (I never had this problem, except after I have moved the bitmap) But the other one happend to me once, my still came up with the timeline open. I had to do a search and found the culprit. I have used the Mercedes from the Vue CD. When you select it it comes already animated. You must then select "not animated" for it. Possibly there are other objects that are animated, I don't know.