If you did not install the most recent Windows update this weekend...do it
now!
There's a nasty virus running a muck that can attack your Windows system and
allow hackers to control your system, as well as prevent your system from
getting antivirus updates in the future.
Go here and read/install the update ASAP so you don't lose your computer:
www.microsoft.com/security/bulletins/200508.mspx