i just bought a new 250 GB SATA Hard Drive of Western Digital. Its a 7200rpm drive. It was running fine for sometimes, but I am having issues with it now. It runs my movies with no problem as well as games. But when i try to copy or move some file from another drive(2nd internal drive in which I have Windows installed or any Removable drive) in it, It stops responding. I can hear the sound of my drive stop spinning and all of a sudden it disappears from My Computer. After rebooting my PC it reappears but with same issues. It also appears on the BIOS. My other Drive is running fine. Any help would be appreciated