Mike,
I am not aware of any bug with the French version.
If you open up the Log Viewer and then down on the right side panel.....click on Setup and Update, Do you see any entries on the Setup Info screen?
If you do, send me a copy and I will look it over.
The Setup log should show something! You mean that you have NO entries under any of the categories: Emergency, Critical, Alert, Warning etc?
If you go into File/Settings....What do you have Avast set to report? Depending on how you have it set, your system may not have suffered any of the events to trigger the selected filter.
Techie