They pay Home Edition just as much attention as to Professional Edition. Both programs are the same (this means they also use exatly the same engine and signatures on each update). So what gets fixed in Home, it also gets fixed in Pro version (and vice versa).
Core elements are no different between editions. Only extra features and settings are different.
As for the problem alone, there is milions of computer configurations in PC world, so no matter how much testing you do, there will always be something that will go wrong.
Does freeze also accour in Safe mode (hold F8 button during system start)? I'd also try to re-install avast! from scratch.
This often fixes certain issues.
Follow these steps:
1. Uninstall avast! (either in normal or safe mode)
2. Reboot as told by installer
3. Use this utility:
http://www.avast.com/eng/avast-uninstall-utility.html4. Reboot again as told by utility
5. Download latest version of avast! here:
http://www.avast.com/eng/download-avast-home.html6. Reboot again as told by installer
Does this help? Or are you still experiencing freezing?