Steps to fix your browser back button if it doesn't seem to be working.
Click on your browser back button really fast several times or press your backspace button on your keyboard repetitively (works the same as the browser back button). Actually this approach works 50% of the time depending on how fast and persistent you are. Firefox seems to work better for this little game.
Okay so that probably didn't work. Lets explore a proven method that doesn't include clicking a million times!
1. While you are viewing the website you are stuck on, click on Internet Options >> Security >> Choose "Custom Level" (example below)
2. Once the Security Settings window opens, scroll-down until you see Scripting >> Active Scripting. Under Active Scripting choose "Disable" - NOTE: Disabling this feature will also turn off scripts that might be useful to you on other websites. You can turn it back on after you effectively back-out of the site. Alternatively, you can choose "Prompt" for scripting. However, this will bring multiple dialogue boxes asking you to allow /disallow scripts.
3. Once you have chosen your scripting options click "OK" and "Apply" changes.
In most cases this solves the browser back problem. What it may not address is something called META refresh redirects. These types of redirects can also be disabled inside the Security Settings window.