Not sure when this happened, but now, when I try to change the font color of certain words of a post (or page) instead of changing the color, the font family changes. This happens using the "advanced" wysiwyg "select text color" dropdown. When I look at the HTML tab, this span is put in instead of one for font color:
<span style="font-family: mceinline;"> text I highlighted in here </span>
I've disabled every plugin and this is still a problem. Every color causes the same issue. If I type my own HTML for the color by hand, it works fine. Everything else in the wysiwyg works fine.