Start by reviewing the link below, (SARC). Follow the instructions and lets see how the computer behaves afterward.
http://securityresponse.symantec.com...a.nocheat.html
If this does not solve your problem, please download Spybot search and destroy from the link below, run a scan and tell Spybot to fix everything in
RED.
http://download.com.com/3000-2144-10...age&tag=button
Then, download HiJack This from the link below( it is a quick start page with more info and instructions. Create and copy a log and paste it here. (Don't fix anything yet; we'll work with you on that).
http://www.tomcoyote.org/hjt/