Make sure you download updates regularly, weekly is minimum.
If you are newbie the best anti virus freebie is AVG.
jc
August 2007
run adware and spy bot ,then get your home page on screen then click on tools, internet options at the top click use current page that should be you see ya
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix virus removal.