"Bad Unicode Input
Your browser sent some text which is not recognised as valid text in the UTF-8 encoding, as it should be. This might happen if you forced your browser to view the previous page in some other encoding rather than UTF-8. It may also indicate a bug in the browser. If you cannot get around this error, contact us."
The first time I try to post a comment, I get this error and my comment doesn't go through but the second time I try the comment does post, so what does this mean and how can I fix it? I'm scared I have a virus or something.