Maybe I'm just a newb, but can someone please enlighten me? Before I installed leopard, my iMac would go into sleep mode, but remain connected to the internet. But now, when it goes to sleep, it loses its connection to the internet and my ichat account logs out and i cant access it on my network. On power options, I have display sleep set, then computer sleep set a little bit after that, and I do not have hard disk sleep checked. I'm pretty sure this is how I had it with tiger though, and when it was asleep, it never disconnected from the internet. also, upon waking it up, it takes a couple seconds and you can hear the drives in the imac spin awake. So, a couple of questions: 1. What's the difference between putting the computer to sleep and putting the hard disks to sleep? Cause it seems when my computer sleeps, the hd's are asleep also. 2. How important is allowing the computer to sleep during long periods of inactivity? I've been reluctant to put the slider to never and just have the display sleep cause I'm afraid. Thanks.