The computer clicks, like: click, click, click...hard drive make normal sound, and than works fine. Well, I choose to hold the power button down to force shutdown, and now the power button is now responsive. In the past couple days, it has took like fifteen minutes to boot. That includes the Grey screen, going to a blue screen and nothing happening. So I force shutdown and reboot, then it goes to login screen and when I click my name, the beachball spins and nothing happens. So I reboot again, it goes directly to my desktop, the beachball spins, and the system starts up. I have an iBook G3 600MHz, 384MB SDRAM, 40GB hard drive (SMART verified, disk premissions fine) and 8GB left. Do I have too many files on my computer? Does the hard drive need defraging? Am I screwed?