Thanks Josh. I appreciate that.

Talking with the other guys, the issues we saw in 14.3 were fixable via CSS. We didn't get to everything, just what was the most problematic.

This was one of the more informative pages I found regarding the changes in IE 11:

http://www.julien-manici.com/blog/important-compatibility-changes-in-IE11-on-Windows-8-1/

Scott