I'm using version 21.0.1180.79 on Windows Vista. Any time I try to do something I get this in the console: Uncaught TypeError: Property 'css' of object [object

I'm using version 21.0.1180.79 on Windows Vista. Any time I try to do something I get this in the console: Uncaught TypeError: Property 'css' of object [object Window] is not a function button.js:349 $.extend.paint button.js:349 $.extend.repaint tweaker.js:121 editorChange tweaker.js:102 f.event.dispatch jquery.min.js:3 f.event.add.h.handle.i jquery.min.js:3