Ah, OK, that's probably where we use the console() function to put some info msgs into the debug console. Which has always existed as a function in FF and Chrome, but IE (being IE) implemented it differently until IE10.
We do have our own fbconsole() we usually use, which tests for the browser version, but sometimes we forget to use it as console() is no in such common usage.
I'm working on getting the 3.0.8 build pushed up to the live site at the moment, but I'll get this fixed as soon as that's done.
Of course, the minute I got the 3.0.8 done, several bugs showed up, so we'll probably be doing a 3.0.8.1 next week.
-- hugh