The hard drive guru hath shown his face. I bow in reverence.

I don't have a RAID utility. I believe I have one on some obscure driver disc somewhere, however, as far as I know, everything that that thing did was possible though the MoBo RAID config utility. Alas, I just uninstalled it.
I was about to check all the power and data connections per your advice, but I just came across the fact that I can boot to Windows and use both drives perfectly. The catch: The array is split in half. I had two partitions (I know, I know - I just don't feel like re-installing Windows lately), and now I have four. I could explain, but I think this depicts it more clearly:
- Pre-Muddle
- Array
- C: Master Core (applications, games, temp etc)
- D: Media Archives (music, photos, documents etc)
- Post-Muddle
- Disc 1
- C: Master Core
- D: Media Archives
- Disc 2
- E: Master Core Clone
- F: Media Archives Clone
Admittedly, there was nothing on my Media Archives, but that's another story. So far I haven't changed around any files, except back up some save games should full Windows boot up be a temporary affair. Also, my reason for posting all this is I then copied some files from My Documents (which I can only assume was looking exlusively at the disc 1 C drive) and copied them to drives D and F, and both copies succeeded. This can only mean both drives are, physically; mechanically; hardware-wise, top notch. Thus (I guess) cable connections are all 100%.
Strangeness.
Congo is right.. IBM drives were once known for thier awesome ability to shake, rattle and roll apart.

Y'all have a nasty habit of making serious topics humourous!
