Q&A editor isn't showing up

Hi There!

a couple of weeks ago, i bought the "big package" from you guys, and installed Q&A. however, it seems that every time we try to start a new question, the editor windows turns from white into gray, and is not editable :slight_frown:

I'm getting a js error:

Resource interpreted as Script but transferred with MIME type text/x-c: "http://tab-slide-out.googlecode.com/files/jquery.tabSlideOut.v1.3.js". /questions/ask/:28
Uncaught ReferenceError: purl is not defined
tinymce.create.init
A tiny_mce.js:1
c.each tiny_mce.js:1
k.create.init tiny_mce.js:1
(anonymous function) tiny_mce.js:1
(anonymous function) tiny_mce.js:1
c.each tiny_mce.js:1
o tiny_mce.js:1
(anonymous function) tiny_mce.js:1
p

please help!