yeah, it's a pretty good habit to always run Marvin after a new app is installed, especially when it's a major app like Toast or Adobe apps, etc...although, in many cases, it's good to restart and apply patches in single user mode just to stay on the safe side. personally, i like to have a spare copy of osx running on another parition, so i just let Marvin go to work all at once from there. it's a lot more automated that way. but that's only if you have the partition to spare