In maggie2013's instance, Windows had tucked config.js elsewhere as c:\Users\HAPPYF~1AppData\Local\Temp\7zO40825B04\config.js (the Temp/ copy could be from an edit, from a user setting, from Win's own mission on earth, etc.) and presumably OC is looking for it under admin/view/javascript/ckeditor/. Windows itself should not even be messing with the file. Which versions of Win or other operating systems are people with this problem using?
Given that maggie2013 has two threads going on buttons, IF EACH of you is using a "WYSIWYG/HTML editor on my Windows/IIS" or on your own machine, THEN EACH take a peek at the last part of this:
http://forum.opencart.com/viewtopic.php ... 75#p396075
and use a pure text editor and ftp instead.