So you're saying that you can draw frames in the left hand pane, then add those frames to the animation in the right hand pane, but one of those two parts of the screen is blank?

I assume from your description that it's the sequence window on the right hand side of the screen that's blank?

I suspect a problem with the version of the Java Run Time Engine being used. Did you install the Sun one or are you just using Microsoft's? Or perhaps you're running an old version of Jemplode? What are the versions of each?

Java: Write once, debug everywhere.