Switching A User & Locking Screen
 

I like being able to lock the screen and switch user on kde so i can keep programs open and still let other users log onto their accounts. However, i am using fluxbox and have had to exit fluxbox and the account to get to the login screen ,and this quits all my applications.
I need a way to have two user accounts running at the same time.
Please help.

I use to use a program that solved this problem. I believe it was called xnest or something. The only problem is that it won't lock the screen for you.

Yes, it is Xnest, I managed to find a wikipedia page on it:
http://en.wikipedia.org/wiki/Xnest