Do you have the correct device selected in Flash Magic?
Are you using the latest version of Flash Magic?
If the answer to both is yes, then do the following:
Start FM
Press F1 to enter debug mode ([Debug] appears at the top)
Chose Read Device Signature from the ISP menu so you get an error
Press F2 to exit debug mode
Email me the debug file C:\flashmagic.fmd
Delete the debug file
My email address is at the bottom of this posting and in the Help -> About window.