Well, it appears to run fine OS X now..;) I've got it booted from a fresh OS X install on an external firewire drive, which appears to be working ok. I've not done a thorough scan yet, but I fully expect it to take some time, but if it can get my data back ... I'll wait!! Anyway, I'll let you know how it turns out. Here's hoping for a more positive mac experience from this point onwards. Paul.