A few weeks back, while downloading a screensaver, My Web Search was downloaded to my computer against my will. I can no longer switch my main search engine, and firefox no longer automatically goes to websites when I type their names in. I tried everything the internet could tell me, but nothing worked. Hijackthis didn't help, and it doesn't show up in control panel. It affects the speed of my computer, and Firefox crashes more often now. Can anyone help?