Version:           unspecified (using KDE 4.6.1) 
OS:                Linux

I'm using present windows combined with multiple activities. I have some windows bound to a specific activity, say A. When I am using activity B and toggle present window there is a *hole* as if the window from the activity A was to be displayed. If I click on that hole focus is given to activity A and to the *ghost* window.

Something similar is reported here:
http://community.kde.org/Plasma/Activities#bugs_2
not sure if I had to file this bug, sorry, but it was not in the bugtracker (I am not used to kde bugs :) )

Hope it is of any help!
Alessandro

Reproducible: Always

Steps to Reproduce:
Create two activities A and B. Open a window on A and set it to be used only in A. Change to B, open two windows. Toggle present window. The resulting layout has a space as if there was a window. Click on that space. The focus will change to activity A and its window.

Actual Results:  
Change activity and focus a window that should not be visible

Expected Results:  
Present windows shows no *holes* and clicking anywhere does not change the current activity