Saying it has expired when it cant possibly be.

My avast thing says it is unsecured because my subscription has expired. Yet the date that the subscription is current till is the 26/7/2013.
It says my license has expired etc.
I have emailed avast and they say to uninstall - which i have
Reinstall - which I have
and sent through the license.
ALL TO NO AVAIL!
I am ready to pull my hair out.
Any other suggestions would be gratefully recieved.
Sorry if i have put this in the wrong place!

And you have checked that the system date and time is correct.

A friend had a similar problems, and the date/time on the computer was totally wrong

Yup, date and time all correct…

:-[ Ok, scrape that… my son had changed the date to 2013 !! How embarrassing…