Hi Heiko,
So you configured autologin and you are surprised you get logged in automatically? Wow! ;)
This is indeed a feature. If you want, you can configure a delay in lxdm.conf next to the autologin.
On fedora 16 I was able i.e. to choose another account after loging out but now for me "Log out" is just a "Restart session"
Please take a look here and get happy:
http://forums.fedoraforum.org/showthread.php?s=2e2e038e71de8eb964dde517edbc7...
http://forum.lxde.org/viewtopic.php?f=3&t=1581
Some users prefer enabled auto-login, some not. How can this be decided for a default configuration of a spin that affects all users? Difficult.
Best, Raphael