put it on the blackliist

Edit this file:

/usr/share/hildon-desktop/transitions.ini

And look for the line begining with: blacklist =

change it to this (it should be in one line, not wrapped as in the codebox below:

blacklist = mediaplayer osso-xterm worldclock image-viewer camera-ui Calendar nokia-maps osso_calculator

Start CSSU Features (powerbutton meny) to and press update to active the changes. (the error you get when loading CSSU Features is normal)