Okay. Odd development. I downloaded an FW multi-format PDB. It worked just fine. Open the book, move to some interior page, hit the power button. When I hit it again it's still there and on the same page.
So I tried it with one of my FW epubs. And again, it works flawlessly, whereas it normally doesn't unless I exit the book and just let it go to sleep.
So what's different? Well, for one, I'm at home, where I have both 3G and WiFi connectivity. Normally, I'm on the subway, where I have neither. Sometimes, I'm at the office. AT&T doesn't work very well in downtown NYC (though VZW kicks butt there) and I don't have WiFi set up.
So the behavior actually seems to be connectivity-dependent, rather than format dependent. My next step is to try it with the radios off.
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