Problem with FrontRow

So I recently had to take my computer in to the apple store because it stopped recognizing all printers. They did an archive and install, which is basically where they save all your applications and files but re-install the OS. So they did that and here I am a week later trying to run FrontRow and it won't work with the remote, nore with the Apple-Escape command. Any ideas? Is it possible that the reinstallation of the OS didn't have FrontRow?