If you set your ship on auto explore it can randomly wander into starbases. If you don't want to attack the starbase in question, you run into a vicious cycle. It pops up and asks if you'd like to attack the starbase, you say no. Then it tries to move to the same place again, and asks if you want to attack, repeating indefinately.
Don't know if anyone else has reported that, didn't see anything about it so I thought I'd post. Hope that helps you guys.