Apologies for repeating myself, but I'd like to try and make sure someone who might be able to do something sees this. I hope an official Beta-tester will have picked up this problem but I'm logging it here anyway.
Two days ago, in the "Beta Testers wanted" thread, I posted details of a major problem I had with the updated beta version of the new PB360 firmware. I only managed to get a response from one other user confirming the problem, so I have to wonder whether anyone is actually monitoring that thread.
Here is the link to the original post. In a nutshell, the default Theme doesn't work properly when using AdobeViewer for EPUB and other Themes won't let you read the EPUB at all.
I did a quick check with the original Beta version (swupdate_29Oct2010_360_wg_15_3). The problem did not exist there. Basically the updated Beta has introduced new problems.
I'm now back on the supposedly-buggy v15.2, which ironically, has only ever given me minor irritations.