This bug only occurs in an up to date IE 8 in Windows 7, IE 8 in Windows XP doesn't have this bug.
I occurs when you try and click inside the textarea box, you get an alert box saying "Stack overflow at line: 0".
I found a "fix" which seems to work, but I really have no idea what else I may have broken by doing this.
Open quickedit_header.html find the function "qe_initInsertions" at around line 347 then comment it out.
I can't see where this function is used... but it must be somewhere since IE reports the error...
It's ironic that that code is supposed to workaround another IE bug which is causing this error :P
Comment in code "Fix a bug involving the TextRange object. From http://www.frostjedi.com/terra/scripts/demo/caretBug.html"
Would be great if anyone with better javascript skills could patch it proper?
FYI, I don't use IE, I hate, but for some strange reason allot of people on my forum do :(