cami,

What version of Avast do you have installed?
Has your version of Avast ever updated before?
Please click on the A ball in the tray…Go to About and provide the version/build and update information so I can determine if their is an issue with the version of Avast itself.

“Unknown 80” could mean a problem accessing port 80 which is a common access port for internet use.
Also, it is important for me to know if you use a proxy filter, firewall or any ad-blocking software.

You may receive other advice from experienced users.
WE will take care of the problem.

;)Techie