I have WD My Book Pro attached to my iBook. Yesterday I launched an application (Acquisition) that usually downloads to My Book but it wasn't on. I noticed it after the download was complete but I couldn't find the download anywhere. So I searched it with File Buddy and it was located on the local hard drive in path /Volumes/<name of the external hard drive>/<name of the usual download folder> Acquisition created the subfolders and File Buddy made the /Volumes folder visible. When I put the My Book back on after this, iBook no longer found it and hasn't found since. It doesn't show up even in Disk Utility (is it called that? I have a finnish OS X Thru firewire the hard drive shows normally but since there's only one fw connection, I need it to work thru USB. Help needed.