Admincp Popdown menu's, Ajax etc not working...
 

I just re installed my windows 7, so on a fresh windows 7 now, and the ajax doesnt seem to work now (when i click edit in post it goes to new page), and popdown menus in admincp not working.
Also i cant insert smilies the mouse goes over then but does not bring the Hand icon up.

Also double clicking on post titles will not edit it does nothing.

Did i mess something up in my forum perhaps before reinstalling win 7, or is there just a add on my browser is missing??

edit- i just clicked edit on this thread and it automatically edits the post in the same page..what is it???

By the way I am using vB 3.8.4

And also i am getting error icon at bottom of my IE taskbar, could this be related to it?

Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Timestamp: Sun, 18 Apr 2010 20:40:36 UTC

Message: 'return' statement outside of function
Line: 7
Char: 15
Code: 0
URI: http://www.************.com/clientsc...o-dom-event.js

Message: Expected ')'
Line: 8
Char: 1094
Code: 0
URI: http://www.************.com/clientsc...nection-min.js