Hi All. I bought a WD My Book Studio Edition 500GB several days ago... but I can't seem to get it to work properly. It seems that everytime it goes to sleep it doesnt want to wake up... and just hangs if I try to open the drive in Finder (so much so I have to restart my iMac). Also, I have tried to backup my internal hard drive to the WD external, however it seems to stop backing up after only several GBs (I have set my computer to never go to sleep as I though that this might be the problem, but it still does it). Do I need to have the screen saver off too? I have tried backing up with Carbon Copy Cloner, SuperDuper, and the backup software that came with the hard drive itself, but they all do the same thing. I have tried erasing the drive, doing all the usual repair permissions etc... reinstalling/uninstalling the WD software, downloading the new firmware (which doesnt seem to find the drive anyway when I try to update it)... nothing seems to work. I will contact WD when I get a chance... but thought that this might be an issue someone can help me solve without sitting on the phone. Thanks in advance. BTW... I'm running 10.4.11 and have it connected to FW 800 port.