Does the light on the drive stay on all the time?  I would suggest you check once again that the cable goes from pin 1 on the A drive to pin 1 on the mobo.  If that doesn't fix it, the next cheapest and easiest thing to do is to replace the cable.  I had the same error you're having, and it was a bad cable.  Oh yeah, since you completely recabled, be sure you used the cable for the A drive and not a standard cable.  The A drive cable has a split and a twist in it near the end where the cable plugs into the A drive.

>After recabling  my Windows 2000 system (necessitated because adding
>additional  memory needed access to the DIMM slots) I now get a "device
>not ready" message when I try to use the 3.5" floppy drive. The Control
>Panel/AddRemove Hardware diagnostic reports that the device is working.
>
>I've checked the attached cable and it seems ok. I'b be grateful for any
>advice about the next step.
>
>

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