All of a sudden my Windows XP has started seeing one of my drives as not formatted. I have an 80GB HDD that i've partitioned into 4 drives. And then i have another 20Gb Hdd that i've connected as the primary slave. I've installed two operating systems Windows 98SE and Windows XPP. yesterday, the Win XP side started seeing the primary slave as not formatted, but Windows 98 sees it as before and the data can be read. What could be the problem and would repairing windows help? thanks.