ok, here's the real skinny (no offense guys). when you install litestep, it only sets the shell to litestep for the user that's CURRENTLY LOGGED ON (that is, if you choose to have the installer set it to litestep for you, which is the default option). if you need to set the shell back to explorer for that user, or the shell to litestep for another user, Omar (in his infinite wisdom) included a handy dandy little app call setshell. it basically sets the shell (hence the name) for the currently loggen on user account.