Well, 37 hours and it's dead
I'm going back to 538. Btw, I asked support for older firmware and they replied within couple of hours. They asked me for serial no and sent mail with a link and big red Confidential stamped on it
I'll test again with old firmware - but not right now. I'm suffering from withdrawal and need an ebook dose right now. Tried to read on my palm and realized it's small and way too bright for my poor eyes...
DrS