I am having the same problem and it makes the plug-in impossible to use. I am using WordPress 3.4.2 and accessing wp-admin via latest Chrome browser running on Mac OS X 10.6.8 (if that makes any difference).
There was a problem with javascript it. It told me I had javascript turned off but in Chrome preferences it was enabled. Anyway, be glad of any help you can offer. When is your new version coming out?
Sorth
House of Lords
