*sigh* I also have a blueberry iMac which I'm fairly positive was successfully connected to Adam (the PowerMac) at one point very long ago. However, the blueberry's hard drive mysteriously died one day and won't mount anywhere either. However, the machine itself used to still work fine when I hooked it up to a LaCie external hard drive. So, I thought maybe that might help, I could at least use it as a monitor. But now the blueberry isn't even getting that far -- instead of a giving me a blinking question mark for a while until it finally finds the external drive and then booting it normally, today it just gives me a blank grey screen with no icon at all. When hooked up to the external hard drive, after several minutes of blankness, it just flashed white once... but no, now it's finally blinking the question mark at me, so maybe it's just taking longer than I remembered. On the other hand, it's entirely possible that there are steps to take, keys to press and what not, that I don't remember. When I hooked the blueberry up to just Adam and not the LaCie, it gave me a blank screen but eventually also gave me a couple of alert beeps (from Adam, I think) that Adam didn't give when hooked up to the Indigo.
Okay, the blueberry is now running off the LaCie, and it just makes me remember how much I miss 9, with screen fonts I could actually read. And it's physically connected to the PowerMac, but nothing's show up in AppleShare. There's also a mysterious "RAM Disk" icon showing up on the desktop which I don't remember ever seeing before, although it says it's empty. Any clues what to try next?