External Hard Drive not working Whenever I tried to open disk management in it takes a long time to open sometimes disk management not responding and if it loads (after a long while) External Hard drive shows there tried to assign diff drive letter it allows me too but when i tried to open it froze my computer tried to use data recovering softwares but it froze whenever external hard drive is plugged in even WD data lifeguard diagnostic froze when USB plugged in.. when i removed the external hard drive everything works fast.. disk management loads fast, data recovering software works fast even scanning my computer drives works fast without my external hard drive lugged in please help