I would suggest creating a new database and trying the install once more to replicate the issue. If the same issue arises, copy/paste the exact error here and someone will surely be able to assist you.
To answer your question, no, that is not normal. I've done fresh installs numerous times and the tables are intended to be empty (for the most part) because its a fresh install. That shouldn't return an error.
However, with that said, you do have one category, one forum, one topic and one message created upon a successful fresh install.