I am unable to use a lot of JavaScript functionality in Internet Explorer 9 on Stack Overflow. The dropdown menu that appears when I float over my name, the Stack Exchange history dropdown, the hyperlink insertion and other menu items in creating new questions, voting, adding comments, etc. all fails. It seems most anything that I expect to be JavaScript fails.
In looking at Firebug I see:
Error
SCRIPT1015: Unterminated string constant full.js?v=a56a3c2dc16e, line 63 character 148
If I use Firefox, things work fine. If I go to Meta-Stack or Programmers stack in Internet Explorer 9 things also work fine. I am only experiencing the issue on Stack Overflow. It started today. It was working fine on Friday.