Using IE10 on Windows 7 my pages were not displaying the banner ads or other ad boxes on the pages. Instead the Google type ad URLs were listed in the back button list thus causing the URL back button to not work properly.

Narrowed my problem down to having to disable Avast on line security add on, as mentioned in a post above. Now the back button works normally and I do not see the ad URL in the list. I can again use the back button with one click to go back to the previous page.

Found a lot of suggestions on the web to fix this but none worked for me till I did the above. hope this helps others.