Hi!
Whenever I disable the shields for a while and then re-enable them (or are automatically re-enabled after the selected time has passed), they are all enabled, but after 2 or 3 minutes the behavior shiled will disable itself. If I re-enable it, it will re-disable itself again after a few minutes and son on. Latest avast free on win 7 64.
Tried un-installing and re-installing, didn't fix it.
The only workaround seems to either reboot or log off and then back on and never disable the shields. That way, they all stay enabled.