Windows 7 Installer not recognising SATA drive

I am trying to install Windows 7 on a Macpro.It has a 640 GB Western Digtial HD. I made the bootcamp partition and booted up the computer from installation disk. But the installer can't detect the HDD for installation. It recognises the external USB drive but can't detect the internal SATA Drive.

I have tried searching on google but can't find anything specific. Is this a known issue?



Sohrab

FCS 3, AJA Kona Lhi & Adobe PPro



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