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..
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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