I finally got my prs-300 this afternoon and have run into problems already
First charge was fine, it powered on, I was able to load a book and flick pages in the reader. I turned it off for a while and when I came back to it I can't get it to power on properly.
It will sit at the loading screen for ages (twenty minutes so far). I can reset power if I hold the power button for ten seconds or so, and it will power back on to the loading screen, although I don't think I can power it off. If I connect it to my laptop it is detected and I can browse the folders on the device and see it in calibre. The device also shows that it is connected to USB.
I have deleted the book I loaded and still haven't had any luck.
Scouring the web hasn't turned up anything useful, so I'm hoping one of you guys can help out before I have to arrange for it to go back.
On the plus side, it looked great while it was working
Further update - now it isn't being detected by the laptop at all and I can't power it off.