If you're using a given piece of software, and you run into problems, it's perfectly acceptable to complain. In fact, it's one of the most helpful things you ca

If you're using a given piece of software, and you run into problems, it's perfectly acceptable to complain. In fact, it's one of the most helpful things you can do. Even if it doesn't help resolve the problem directly, it at least helps make the problem more widely known. This can be very useful information for people investigating the use of such software. It doesn't matter how much, if any, you may have paid for the software. If it doesn't work in a particular case, let it be known.