I have had a lot of little glitchy problems since I got my computer. I assumed that it was operator error and trying to figure out online classes and everything that goes with them. Well, part of that is true, but I did find out that probably when I installed one of the screencast programs another program was installed with it. It is called Browsersafeguard Rocket Tab. It is pop up ad ware and while technically not a virus it slows down the computer and takes you all sorts of different places and doesn’t allow the computer to function efficiently.
Here is an article about it. http://malwaretips.com/blogs/rockettab-virus-removal/
I really hate being messed with.