I have a 1Tb My Book. It wooks great on my laptop which runs win7 32bit, but my desktop with runs win7 64bit is a whole different story. When windows trys to do a back up, my computer slows down to a stop. Literally. I have to disconnect the drive and do a hard boot to get my computer operational again. I've aske WD tech support, but that was a waste of time since all they did was keep sending me a list of links to their faq site and nȯne of them were even relevent. Any thoughts?