[Stinger]

I'm running Win7 x86 Ultimate.

I've been able to replicate the issue consistently, regardless of whether the browser is embedded or not.

But I think I was wrong in my guess at what was causing it. What I forgot to mention is that after selecting a book and clicking on the browser pane/window, I would roll my mouse-wheel to test if the browser still worked. If it did, I'd select a different book from the list and quickly click back to the browser.

It seems that it was the act of selecting a different book from the list while the cover browser was still in motion that was the cause, not anything to do with clicking back to the browser. Sorry!

To replicate the issue, do this:
1. Give the cover browser focus, and 'spin' it using your mousewheel.
2. While the covers are still in motion from your spin, select a random book from the Library list.