I don't even see an option to select d2xv10beta52 before installing?the standard installation for d2x is base 56 in slot 249, base 57 in slot 250, and base 58 in 251. make sure you select d2xv10beta52 in the installer before installng
i also had hdd issues using d2x beta53, for me using the alt versions of both gave me really slow initial load times for usb loaders