I'm experiencing a small technical problem with DiF commentaries, and was wondering if anyone else is having the same problem or if I'm just imagining it.  I find that whenever I pause a commentary and come back to it a few minutes later the commentary is farther along than it was before, however the time stamp hasn't changed.  It happens consistently, no matter if it was just posted or if it was a previous posting.  I did not have this problem before the website went to the new format.  Its not a big deal, I just always make sure I can listen to the whole thing in one shot.  I was wondering if there is some setting on Mozilla that I should change that's causing this.