Just trying to follow a lead, not sure how to fix it yet.....does the url in the address bar change slightly when you hit back the first time, removing a # followed by a number?
Not sure I follow you. The back button normally takes you to the previous URI that you were viewing, whatever that was. There may be no relationship to the current URI at all. The button doesn't specifically do anything to what's in the location bar except delete it and replace it with something else that happens to be the previous entry in the browser's history list.
Browsers may sometimes change the way the URI is represented in the address bar because of things like non-alphanumeric characters or characters that have special meanings. You will commonly see a percent sign followed by a number for example. Before you ask (I know, you weren't going to
) the number may not necessarily be in the decimal representation so it might look like it has letters in it, but it's really just a number. If the representation does change when you press the back button, it might not be intentional on the part of the browser's authors. People who produce malicious Websites often use this kind of thing to try to trick people, by obscuring what might otherwise be a dead giveaway in the location (sorry, address) bar that it isn't really your bank's Website that just asked you for your password.
Or have I misunderstood the question?