Wait until McAfee has completed running and if nothing is found, run a good spyware like Ad Aware or Spybot Search and Destroy, both can be downloaded for free.
http://www.lavasoftusa.com/ and look for the free personal download in the upper right hand corner of the page. Do a google search on "Spybot search and destroy" and there are several places to download a free copy. Both are good (I use both) and cannot harm your system. This should rid you of the problem. Good luck!~