Thanks for the fast reply and welcome!
I have scanned my computer with spybot S&D in regular mode and in SAFE mode. This was under an adminstrator's account.
*The most prevelant banner replacement is an advertisement for Windows AntiVirus 2007.
*My homepage is being replaced by jack9 dot com
*The most prevalent pop-up is a search page called "SearchSTT" (setthetrend dot com) with random search terms already entered, not in coincidement with any recent searches done by this user and an empty window which only appears for a milisecond and in a strange window location and size.
*Also, the 16x16 bit icons next to link in my favorites tab have been altered.
My system is Windows XP.
Edited by Early_NY, 15 October 2007 - 10:17 PM.