True, can't please everybody...
However, Avast 4 and it's customization skins have had it's day, and version 5 brings better functionality, and a standard, more professional looking GUI.
Making it standard across the range means that the basic configuration can remain the same, and just personalize the different packages.
Version 5 also includes new technologies to protect the computer, so it made sense to make it a major version change, and make it look more modern at the same time.
regards, Gizbar.