Hi I had a western ditital hard drive for a year or so and all of a sudden it would let me open up the user and get to desk top but when I tried to access anything it would say that I would need to get to the administrator which I was and would not let me access anything so I tried to restart same ole. So I bought a new hard drive seagate and installed my XP cd and set it all up and then installed my old western digital hard drive as a slave I scanned it totally and I was able to access my stuff from the slave but a month or so later my daughter was on a public libraray siteand it froze up so I tried to restart the computer and it would not let me it said it was unable to find the hard drive or check wiring and it did the same thing when I tried to reboot the XP with and with out the slave and got the same results. Thanks really need help.