Problem with Blender

I downloaded Blender and am trying to add the STK assets to the user preferences. The problem is that the user preferences text is all displayed as a bunch of blocky shapes. There is no problem with the rest of text in Blender, just this one issue. Do you have any advice? Also the .exe display says: "OpenGL Warning: No pincher, please call crstatesetcurrentpointers() in your spu". I don't know what this means. Please help?