Hi I'm not sure if this is a common issues with Macs and firewire drives, but it seems to be an issue with my PowerMac G5 and iMac G5. I have 2 firewire drives (with USB2 support) and they both experience the same problem between both my Macs. I've tried hooking them up via USB2 and there is no problem (mainly because when it's hooked up to the USB port it doesn't go to sleep at all). Basically the problem is, I attach a firewire drive to my Mac. My Mac goes to sleep after a few minutes of inactivity. When I wake up my Mac from sleep, and try to access the firewire drive, it hangs on me. I would then have to restart my Mac (and my firewire drive). This is very annoying! How can I get my firewire drive to wake up from sleep properly? Or not put it to sleep at all (the put my hard disks to sleep option is currently unchecked on my Mac). And the reason I don't have to it on USB2 is because I have other things attached on there (iPod, mouse, printer, etc) and don't want to keep flipping between them. Also, is there a firmware update I can do? I believe my drive has the Oxford 911 chip (although I cannot 100% confirm, I've opened it up but no mention of Oxford chip). Thanks in advance!