Resolved "Back" Button on Mouse Problem

During the past few days, the "back" button on my mouse won't go to the previous page in IE8. The "back" arrow also goes nowhere. In checking the dropdown list the url address (http://adverv.adtech.com/adifram/3) is listed. This is what appears to be preventing the back functions to return to the previous page. It somehow shows up between the last page I went to and the previous page. I checked mouse settings and the mouse is correctly configured. Any ideas?

 

Yes, works here. It does appear to be ads these sites use. The url addresses all appear to have something to do with ads.

 

Found a solution from another source.

http://www.mvps.org/winhelp2002/hostsfaq.htm#Button

It was simply a matter of making changes to two IE8 security settings and adding the culprit url to restricted sites in IE8 options.