How can I make ADW_EX wallpaper stick?

When I set new wallpaper, it lasts only until the next sleep. On waking, the default ADW sequence of wallpapers resumes. I can re-select the wallpaper and it will again persist again until the device sleeps. I've tried: - Locking the desktop - doesn't lock the wallpaper. - Upgrading to v 1.3.3.56 - same behavior - Restarting ADW after setting the wallpaper - the wallpaper persists, but still only until a sleep. How can I make it stick? ADW.launcher EX 1.3.3.1
Kindle Fire 6.3.1, not rooted
Android 2.3