Since I updated avast! to version 5.1.889 (from 5.0.xxx) on my Win7 64bit Lenovo Thinkpad, i have the following problem:
When locking the system ("Windows-Key"-"L") or after "Sleep-Mode" no login window to Windows is displayed any more ... only the Windows7 background image (of login) is shown.
The only thing i can do in this situation is a brutal shutdown of the system (power button or removing power)
The login window is normally displayed by the Lenovo Fingerprint Software (i am using the current version 3.3.2.27), since it combines "normal" login and fingerprint based login.
But if I disable the behavior shield of avast!, the login window is displayed and fully functional.
So there is a conflict between the current avast! version, more concrete with the behavoir shield.
(my shield settings are: all options checked and action: ask)
Is this conflict known or has anybody the same problem?
[UPDATE 2011-02-24]
The same problem still occures with version 6.0.1000