Since I can not find any BAD programs on your laptop and I do not know if this site has any Security Experts, I recommend you go to this site. Read the first two threads, then post a thread on that forum.
http://www.pchelpforum.com/xf/forums/am-i-infected.479/
I know you have AntiVirus software, but that does not mean something didn't get through. If nothing else, it can't hurt and they might just find something. If they don't find anything, come back here and we'll try something else.
Sometimes these things are a matter of elimination. Good Luck.