So I have an iMac g4 800mhz, 768 mb ram, os 10.4.3. Why does my hard drive constantly spin?? I suspect that it is a problem with virtual memory. I don't know though. If it's on, the hd is spinning. It's been doing this for quite a while now. I thought that doing a "clean install" to Tiger would take care of it, but it didn't. In the activity monitor I have things using only 30 mb of ram and 150 mb of virtual memory at the same time. I thought my mac only digs into the virtual memory when it has to? I know there a lot of really smart people out there that can probably help me with this. That's why I post here. So, gimme your feedback people, I need help.