I bought an e.h.d today [500GB LG] though when I click on the icon to remove the device , it says : Samsung HM500Ji USB device. -Is it really Samsung? or maybe the cover is just LG? Also, when I attached it to one of my PC's usb port, the device made a strange beep. When I attached it to another usb port, there was no beep and the device worked correctly. -Maybe there's something wrong the that usb port? -Is it okay if I leave the hard drive attached to my PC, always? Is it harmful for the device [even if it warms up after a certain period while connected to the PC]?