I have assigned my mouse 2 button to Internet Back and it worked great on here until about a week ago. I used to read threads then just hit back to view the 'current threads' but i cannot do this anymore. When I hit back nothing happens, and when i look in the back history there are 2x http://ads1.ad-flow.com pages and a http://www.burstnet.com page. These pages never show up yet they put themselves in the back directory as if when you click a link it takes you to those pages, and then those pags forward you to the link. Why is this happening?

Ad blocking, perhaps?

I had the same problem... It turned out that i had unknowlingly installed some ad-blocking software that came free with some other stuff i installed...

Do you get any errors on your webpage where the ads are supposed to be?? If so then its probably ad-blocking software....