Well I figured it should work fine with Windows, too. But it seems to insist on creating arrays, starting at the card's BIOS. I can't seem to tell it to just see all the drives independantly.

Even if I can't get it to work "properly", I may keep it. It's $40 for a 5-port RAID card (after rebate), and I might use it on a MythTV box I'd like to build sometime.