Editor white text when enabled, visual/text buttons not working

I get the same issue that is described here, but reverse:

http://ww.wp.xz.cn/support/topic/visual-editor-not-working-after-33-upgrade

Text is white in editor, and I can’t use the visual/text buttons. A shame because it improved performance on my site…

http://ww.wp.xz.cn/extend/plugins/use-google-libraries/