Avast Free and Gmail

I have been using Avast free for a few years now. After the last update I can not use gmail as an outgoing server. I always get the message cants send for unknown reason. I tried every setting in Gmail and every port. Other servers are not affected, seems only Gmail as outgoing. Then I switched off Avast email shield and it worked. Does anybody know of a fix besides having to disable the email shield?
Using Win 7 Ultimate and the latest Tbird and latest Avast.

I am having the same issue with Thunderbird and my pop3 email.

The strange thing is I have the same setup on my laptop and it works with gmail outgoing. Its just my office tower that wont work.

have you tried avast repair to see if that changes anything?

controlpanel > ad/remove programs > avast > uninstall > repair option…wait a minute and reboot

any change?

I tried that fix, did not work, so I uninstalled it completly and downloaded a new full copy and installed that and now it works.
Thanks

avast works in mysterious ways. ;D