Software Update - WD SmartWare Windows Version 1.5.1.6 (8/16/11)

i have just bought a new WD my passport essential usb3 and i tried to install the 1.5.1.6 software update instead of the original 1.4.5.5 that it came with. But on the new software it simpy does not work. You can see it but the software will simply not see the files on the computer or the WD disk. You just see 0 bytes on both sides. I tried to remove and reinstall but to no avain. With the original software it runs fine, but the back up is nowhere near as fast as the manual suggests for a usb2. I think that it actually runs slower than a usb1.1 . And my computer runs on widows 7, has the latest servicepacks and updates and has a 8gb Ram and an intel i7 processor, plus an  SSD.

Does anyone have the same problem as me?

Homer.