I've noticed that when I use Pandora, whenever I quit and go back to my homescreens, they're blank for about 20-40 seconds. If I turn off my screen and turn it back on, they appear immediately. It's not a memory issue, as I always have at least 180MB of free RAM, and usually more. It doesn't happen with any other apps, but it happens EVERY time I use Pandora. Anyone seen anything similar?