Problem Updating Virus Definition

I’m using avast 7.0.1474 and the current virus definition version is 121206-1, and avast says that the virus definition is outdated and need to update when i click “update” it starts to download nothing and still say that the definition is outdated. What happened?

HI ThoriqFA how is it going today. What operating system are you running avast free, pro security on
This type of information would be helpful. Thanks.

Try a repair of avast:
XP - Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button and select Repair, click next and follow.

Vista, win7 - Control Panel, Programs & Features, uninstall a program, select ‘avast! Anti-Virus,’ click the Uninstall/Change and select Repair, click next and follow.

You may need to reboot after the repair.

Report any error (if any) displayed during the repair process.