internet explorer and firefox won’t follow links

In several websites and e-mails, when I see a clickable icon, (for recipes, coupons, etc.) clicking leads me to a newly opened tab that shows NOTHING but a black screen with a small white dot in the center, but claims (in the TAB) to be a 1x1 pixel GIF image. No other navigation seems possible to access the item. This especially occurs with online catalogs in shopping contexts, the HTTP address will begin with "http://click.email.sears.ca


I am having problems opening the following type of links in my computer. http://click.e.kraftcanada.com or http://click.email.sears.ca

anything that starts with click.e

I have tried opening through IE and the web site for sears changes to:

http://www.googleadservices.com/?sa...961%2521p%2521%2521g%2521%2521sear%2520canada


I use firefox . What could be causing this? Can I fix it myself? This has been happening for about 10 days. Any Ideas or Help would be appreciated. I have done a restore to the earliest date I have, still have this problem.