I’m having the same issue with my visual editor (white font). I’ve tried de-activating all of my plug-ins and re-installing the latest version of WordPress (according to other support forum advice), but none of that has helped.
I’m fairly inexperienced with this stuff, but I’m wondering if anyone might be able to explain how to perform TimTee’s suggestion above or if there’s another way to fix this problem?
Thanks for any help!