I'm having a problem where OS X won't place any drives on the desktop. I stick a cd in and it spins, but then doesn't show up in the finder or on the desktop. The same is true for my ipod. I plug it in via firewire, the "do not disconnect" screen comes up on the device, but nothing on my ibook. I also can't mount drives from the network. I find them just fine, enter the password, but then they never show up. Any ideas?