Re: Ist-D won't format my CF.

[Joseph Tainter]

Try removing the batteries from the D, then reinserting 
them. Perhaps the firmware just needs to be reset. When my D 
froze a couple of weeks ago, this did the trick.

If this doesn't work, and it cannot format other cards, then 
the camera is defective. It is my impression that the D had 
a high defect rate.

Joe