Happened to me last night as well.  I finally switched back to using the previous version of TER and it is quite refreshing.

I can no longer access the drop down list of discussion boards. When I click on the down arrow, the list of discussion boards seems to be blocked by the existing text on the Discussion Boards front page. The regional boards drop down works but not the down arrow that allows access to boards like the Porn Stars board. This just started today. I had no problem yesterday. I rebooted my computer to see if that was the problem but it is not. I also tried to access on another computer with the same result. Anyone else encountered this?

I did the same. Tried the new version today and it works again.

I had this same issue yesterday and early today.  But, it suddenly started working correctly about an hour ago... 1Pm EST Thursday.

It still does NOT work for me.  And it's a big PITA.