Well lets deal with those remnants of menus, etc. as I think your wording of the Title Avast Stalls has led us off at a tangent (we are looking for a reason that avast stalls, e.g. stops working) and it is the graphical remnants that you really mean ?
Thought with your last post, I'm not sure exactly what that is any more.
Graphics glitches, etc. - Menu, Display Remnants, Log Viewer Remnants, Graphics glitches, etc.
- Edit the C:\Program Files\Alwil Software\Avast4\DATA\avast4.ini using Notepad [Common]
section, add the following line to the section SunbeltKPFHack=2
, save the file, you will be prompted by the avast! Self-defence module if this is OK answer Yes. Whilst this is primarily for Sunbelt or Kerio Personal Firewalls it may well work even if you don't use either of these firewalls.
Also see http://forum.avast.com/index.php?topic=37609.msg315764#msg315764
Also see, http://forum.avast.com/index.php?topic=40840.msg342656#msg342656
which mentions a similar issue relating to McAfee Site Advisor
and remnants of menus, etc.