My powerbook seems get sick.

After a retardness appearance, I reboot the system. And this time, the boot up process becomes extremely slow, but barely working. Then I might do something wrong, I turned the computer off, and restart it again, it sounds even worse. This might be the problem of the harddrive, since it keeps hopeless and endless murmuring. Also, this can be the problem of something really too hot inside the computer, anyway, I will let it cool down and check it tomorrow.