Since a day I have the following scenario:
When I lock the screen, a black screen comes up.. and after about 10 - 15 seconds the login screen comes back up.
I tried to switch to background image instead of the Windows Spotlight, but that didn't make a difference at all.
Clicking or typing (when the black screen is on) doesn't help anything to get to the login screen either...

Anyone any idea what I can do to solve this -strange- issue?

(I know it's vague.. but that's all I have for now... The only thing different from yesterday is that I installed an old game (1999) with windows 98/me compability (the installer.. that's it).. but I doubt if that would have consequences for the lockscreen..)