IE 7 sometimes opens multiple additional windows with ads. How can I stop this? -

All of a sudden my IE 7 will allow the opening of additional windows with ads. As time goes on ore and more additional windows open up. I adjusted the pop up blocker to max, scanned my disk for viruses with an up-to-date Norton IS. How can I stop this?

I think you have spyware/or virus in your computer. Try cnet for a program call threatfire or avg. Only one at time not both. You should unstall one when you install the other one. Both have free version that works