I've noticed something lately. In the Energy Saver control panel of my iMac G3, I'm always sure to have Sleep Mode initiate if idle for 10 minutes. I have no power down time limit for the hard disk. However, if I type in SimpleText for too long, the computer remains on but the hard drive shuts off! I don't have a problem with this, but I'd still like to know why it does that automatically.

Any ideas?

-Apostrophe