Gary you might not have to Re-Format your Hard Drive! If you have a Virus Scanner, eg., Norton Anti-Virus, Mcafee Virus Scan, etc., try and update the Virus Dat files over the internet to get the latest protection. Once you've updated your Anti-Virus' program Dat files run a Virus Scan on your computer. With the latest updates you just might be able to catch, quarantine, and eliminate that nasty bug. If that doesn't do the trick if you give me more specific information about the Virus and how it is affecting your computer plus when you first noticed it on your computer there may be other ways to eradicate it without doing the Fdisk rigamarole. That is unless you don't mind spending a day or two or three to re-format and load everything from scratch again.

Best regards,
Mike