even though the disc is connected, and im working, the error message keeps popping up every 5 minutes. i disconnected the hard drive (Lacie 2TB) and put it back in, and the error still in there. I hate the fact there is no sollution to this stupid problem. I'm a photographer, and this issue is a nerve cracking thing. I have all my photos, and back ups of my editing programs, my catalogs back ups in there, and I cannot work like this. I turn off the Mac mini and the problem still there. sometimes it stops and does not do it no more until I turn off the machine for several hours.