After installing iLife programs through firewire transfer from one computer to mine, (mine being the external HD) I have found that my computer runs slower, when openeing aplications and pressing the power button to shutdown, it takes a few minutes to the "restart, sleep, shutdown" menu to appear. I have 512mb SDRAM and 40G HD space left. What can I do to optimize the performance of my G4 PowerBook, bringing it back to the speed it was before the transfer. Also, is there a way to search for outdated software, such as iTunes for example, and delete it after software update? Thank you much.