guys i reinstalled avast today and for some reason when i click on the browser cleanup tool to check my browsers it says “avast browser cleanup has failed to retrieve appropriate data from the internet.Check your internet connection”.The problem is that i am connected to the internet and avast is able to update its definitions and connect to avast account without any problem.
i have windows 7 pro 64bit,avast free latest version,malwarebytes free,windows firewall
thanks in advance,
george
Repair…Control Panel>Uninstall a Program>double click “avast”>click “repair”>reboot (you may need more than one reboot). 
i did the repair and 2 reboots and the error persists!
Have you ran full system scans with both avast and MBAM?
Whilst you may have an internet connection, it could be that for some reason avast can’t connect to the browser cleanup back-end server/s.
It has been happening to me for the pass 2 days. “avast browser cleanup has failed to retrieve appropriate data from the internet”, and there are other reports of the same:
http://forum.avast.com/index.php?topic=147368.0
http://forum.avast.com/index.php?topic=147371.0
http://forum.avast.com/index.php?topic=147392.0
so there must be a problem with the browser cleanup back-end server/s as DavidR says.
i see!ok i will wait a few days to see if the connection is ok and then i’ll rename this topic to “SOLVED”. thanks a lot guys for your time and assistance