Maybe I'm interpreting this picture incorrectly, but it looks like a vote without score. As far as I can tell I got a single upvote and no downvotes for both these questions, but the '10' doesn't show up..
You have indeed hit the daily cap. Click the "today" tab to get all the votes from today. You will see that they add up to 200 + any points from accepted answers.
Please take a look jon skeet's reputation tracker