I've read up on similar issues but I can't seem to find a solution. I bought a 1TB Iomega Prestige drive, it worked great for a few months. Started making loud clicking sounds. Iomega sent me a replacement drive (refurbished). I am using it as my time machine backup in Leopard, so it was really just a matter of plugging it in, formating it with the OSX file system and setting it up for time machine. When attempting to format from Disk Utility, I get an error (see screenshot). Is there a fix to this, or did Iomega ship me a dud? (Additional info: I can access it and format it without any problems from Windows 7 based PC).