I recently bought a used IBook G4 Mac OS x Version 10.4.11, with memory 512. It is a PowerBook 6,5. This is my first experience with a Mac. I have had numerous desktop and laptop pcs but really wanted to see what all the hoorah over MAC is about. I am not thrilled with this one though. It is slow and it did not even come loaded with photo software. Is there anyway I can upgrade without investing in a new MAC? I believe it is a Tiger operating system. Thanks in advance for any help.