mattbgvsu

I recently moved back to my apartment after going home over the holidays. My internet connection was great at home, I was able to watch streaming videos from sites such as youtube and espn. Now that I am back to my apartment my internet has been very slow, all of my roommates connections are running fine though. Streaming videos are very slow to play and only videos from youtube.com have been able to play. Streaming videos from websites such as espn.com and break.com will not play, it just says the video is buffering. I have ran all sorts of virus scans and adware scans. Something recently came up while using ad-aware 2008. I have 9critical infections under the family name of Redirected host file entry. All of the infections are from the same IP address. Whenever I click remove or even quarantine a screen pops up for about 2 tenths of a second that looks like its states: deleting files. The screen disappears and the 9infections remain. Could these infections be the problem? Is there anything else I can do? Please help