avast needs a new register key but "about avast!" says my key is till 2017

Avast Free Antivirus / Premium Security
1

here is my problem:
http://img339.imageshack.us/content.php?page=done&l=img339/7250/avaste.jpg&via=mupload
avast asks for a license renewal but in the about avast! as you can see my key will work till 2017
what can i do?

2

You obviously have a pirated key… so I’m afraid it really won’t work till 2017.

3

Where did you get the key?

Having a key that will work till 2017 is not valid as at maximum keys for Home are only 1.5 years and Pro for 3 years.