Suddenly, my eMac can't 'see' my external firewire HD. I looked in Disk Utility and it can see that the disk is physically there, but isn't mounted. Not noticing the 'mount' button, I tried repairing the disk but it failed...invalid node structure...and when I did discover the mount button, it didn't work. I tried restarting the computer but no luck. Last time this happened (which it has) the firewire card went bad, replacing it fixed it. I know this isn't the problem because the computer ('about this mac -> 'more info' -> 'firewire') recognizes that there is a device tree and it recognizes both the HD and iSight. I guess the real question is, how do I mount the disk?