I'm now two hard drives into trying to replace the hard drive in my Duo 2300c, and I'm just not having any luck. From what I gather, the IDE controller in the 2300c supports ATA...2? As in the first EIDE specification? I was under the impression that ATA standards were supposed to be backwards compatible, but I can see this is not the case - I have a 2GB drive (Fujitsu) and a 6GB Drive (IBM Apple OEM) that both will not detect in the 2300c. (Both drives have been HFS formatted successfully, and read/write properly.) I've heard tell of people managing to put some pretty hefty hard drives in their Duos - my question is not so much how, I guess, as 'which ones'? At this point, I'd be satisfied to have a working machine at all, so if someone's got a hard drive, or a 2300c for parts, let me know. =( Thanks, Keegan