5.25 Floppy Troubles

I have just installed a 5.25 floppy drive on my Windows XP machine.  (It came from an old Zenith 386, circa 1987).  BIOS and WinXP recognize it, it functions properly (I have some 5.25 disks, 160K FTW!), it reads disks and formats them ok.

The drive light just stays on, however.  It doesn't turn off when there is no drive access.  Any ideas on how to fix that?

>>10
And if you treat both discs nicely, the 5.25" floppy will be more reliable. Sony failed.