Internet Explorer Perimission?

Hi.
Iv'e implemented the ckfinder via javascript dialog (just like the example) and it works perfectly in FireFox.
However, in Internet Explorer I get a javascript error that disables the upload ability :
{Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Timestamp: Thu, 18 Nov 2010 12:38:00 UTC


Message: Permission denied
Line: 2
Char: 1
Code: 0
URI: http://www.sospets2.co.cc/AdminPower/Ne ... LeftBanner

}
What permission do I need to grant, and where?