mchain
2
hi xash,
Check you other thread here: http://forum.avast.com/index.php?topic=134206.msg986412#msg986412
[EDIT:] To clarify how an automatic vps update occurs, one must start a cold boot (system off and not running at all; sleep or hibernate is not a complete system shutdown, but is a state of suspended animation for your system) to get avast! to automatically check for the newest vps available.
If you are running avast! free, then the vps check interval is 240 minutes by default while the system is up and running. Free version does not allow a lower time interval setting to be set, but paid versions do allow the user to have avast! check more frequently. Mine is set to check @ 60 minute intervals. As you have found out, a manual check can be done at any time.
However, free or paid, all streaming updates come in at the same time for everyone, thus everyone gets the same current up-to-date protection.