We just upped our Norton renewal about a month ago, and this week started receiving problems with IE. Search terms in google and yahoo are frequently redirected to random websites and our laptop seems to be running slower on response times. Also getting random AV threats popping up through the internet browser. I have ran several scans, which come back as all clear. I also did a system restore to 3 days ago, but that hasn't helped. Not sure what to try next.
Thanks