You should be alert during the next days: Do not open any message with an attached filed called "Invitation" regardless of who sent it . It is a virus that opens an Olympic Torch which "burns" the whole hard disc C of your computer. This virus will be received from someone who has your e-mail address in his/her contact list, that is why you should send this e-mail to all your contacts. It is better to receive this message 25 times than to receive the virus and open it.
Gives you the best results for computer, Blogger and orkut tricks and tweaks