Thanks. Tried updating to 2.0.0. Audio player worked in Firefox for MP3s, but now several bugs:
M4A files no longer play in Chrome or Firefox using the shortcode [podloveaudio src="filename.m4a"] (though they do work if part of an episode, using the [podlove-web-player] shortcode).
In Chrome the player spans the full width and cannot easily be resized. It overlaps images and the back/forward icons appear below the player (maybe that was on purpose). See http://cl.ly/MtY8
Episode pages show the image full size instead of in a small box like they used to. Here's the image how it was, correct (small) size: http://cl.ly/Mu3S. New version shows a huge image, and below it, this jumbled thing: http://cl.ly/Mu97
I've reverted to 1.2.1 for now.