I have a Mac mini 166 that has been doing great service as a download and media machine for 3 years now. Recently bought an iomega firewire external drive and that until last week was great. I am now getting a disk not readable error on this drive. The drive works fine on my imac, the following has been done: Reboots of machine and drive reset PRAM reset pmu replaced the hard drive in the case with new drive - this worked for a week or so until today when the dreaded DNR error is back. the drive is visible in disk utility but not the partition, all the repair and other options are greyed out. No idea what to do here, I thought the drive replacement had fixed it but seems that is not the issue, anyone got any ideas? thanks It feels like it has to be the mini, it is also struggling with USB drives though most of the time they are recognised.