Stupid question time... does an F230 allow mixing narrow and wide 4GB drives in one shelf? One drive on our F230 (which uses wide drives) was freaking out the rest of the system, and I replaced it with a spare from our F220 (which uses narrow drives). The F230 didn't like that at all. ;-) I was under the impression that you were allowed to mix narrow and wide drives on a wide bus (as long as the narrow drives were within ID 0 to 7).