Can't select tools or settings in CS6

I just installed InDesign CS6 via creative cloud and I'm having an issue with selecting tools. For example with the Character Panel, when I select text in my document and go to the Character panel, InDesign won't let me select any other fonts, select the drop down menu, or change any font settings (size, tracking, etc.). If I'm in a text box I can't select the Direct Selection tool. I tried a new document and an old document with no luck. Any advice? Thanks!