Back button ie 10 not working
The problem here is properly an advertisement provider which blocks the back button functionality.
The solution is to see which provider is causing this by right-clicking on the back button, a list is shown.
To make it easy, right click the advertisement, choose properties and copy the domain part of the address URL.
In Internet Explorer go to the menubar - choose 'Tools' - 'Internet options'.
Choose tab 'Security', select 'Restricted sites' after that press 'Sites' button.
Add the advertisement provider domain to sites (paste).