Text artifacts
I created some Arial text with the text tool in Illustrator CC but it displays with some artifacts (the gray areas):

These persist even if I convert the text to outlines, and I can't find a way to select them to delete them. It doesn't happen with other fonts (but I'd like to stick with Arial). What might be causing this, and how can I fix/prevent it? Thanks. I'd attach the file, but I can't figure out how. 😞
