Okay, I just tried that and it failed. When I used "insert picture" and browsed to my file it didn't take. When I clicked on "rb preview" all I got was a big grey window with a small white square at the top of it.
I've tried various picture files. Is there kind of specification to the pictures I need to be aware of? The one I have been trying the most is a jpg that is 500x600 pixels. I also resized it to 100x150 but that didn't work either.