I am upgrading from 3.0 to 4.0.0.4 and can not get editor to load in IE 6 or FireFox (Have not tried any other browsers).  I am getting an “Invalid Character” client side exception and quickly realized that all *.js.aspx pages are returning the encrypted sources.  When I call the *.js.aspx?settinghash=xxxxx in the browser from my development server I see the files encrypted, yet when I call them from one of your online demos everything is decrypted as it should.