ONLY 700GB? How big is your drive? If you can't mount the drive you may have to zero-fill it... unfortunately that would definitely get rid of any hope of retrieving your files. If you have a 1TB HD or something like that there's a possibility that the partition just isn't showing up in gparted for some reason.
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Desktop / MSI Wind U100 Netbook
AMD 64 X2 2.6GHz / Intel Atom 1.6GHz
2GB DDR2 800 RAM / 1GB DDR2 667 RAM
9600GT 512MB GDDR3 GPU / Intel GMA950
ASUS M3A76-CM / Intel 945GSE Chipset
120GB IDE HDD (lol) / 160GB HDD
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