I just learned about Bing today. Their video thing is pretty sweet. You can just scroll over the video in your search and it starts playing. Now what do you mean by taking over your browser. If it is the first page to display when you open your browser window then it changed your Home Page. Look at the top of your browser window and see if you have a Tools option. If so choose this and choose Internet Options. If you do not have these options, hold down Alt on the keyboard and press T.