Heads up - more attempts to get people to click on infected email attachments are being sent out - please be alert and realize that most any email that suggests you must click on an attachment to resolve some issue is almost certain to be malware.
This one pretends to be from Facebook:
Because of the measures taken to provide safety to our clients, your password has been changed.
You can find your new password in attached document.
Here is an old one that was very popular a few years back returning for another round -
Subject: Your Greeting Card is Attached:
[some email address here] just sent you an ecard
You can view it by open attached document.
Your ecard is going to be with us for the next 30 days.
We hope you enjoy your ecard.