Obviously this thread is going in the same direction as the first one...especially after the posts in the last thread were after a solution being posted.
The simple facts are:
1. Support for avast! 4.8 will end soon.
2. If you choose to update to avast! 5 then any valid license you have will still be valid to use on avast! 5
3. There is a way to remove the pop up however you have to remember that it is down to you to update.
Now I think this thread should be left, and locked...before more conflicts arise...
Scott