I need some help again.

I've backed up all my data off the D: drive (the one Windows claims is unreadable), and now I need to get it back in working order.

I went into disk management, right-clicked on the drive, and chose "Revert to Basic Disk". I got the old hourglass-then-cursor-and-nothing-happens routine. I tried this several times to no effect.

I then tried Partition Magic 7. The wizard was unable to perform any operations on the drive, and the "Operations" menu was entirely grayed out whith the drive selected.

Lastly, I attempted a normal format via right-click in My Computer. Windows was unable to format it.

What now?