I just updated from P2 to P4 and, instead of wiping my hard drive, just resinstalled the operating system. Everything seemed fine. Have two drives - C and D(storage). Suddenly, my hard drive is chugging like mad. Did a Perfect Disk defrag. C drive great. D drive stalling, stalling, chugging... finally finished but skipped a lot of files. Wiped the drive. Tried again. Still a problem. Is it the drive or XP? Maybe I need to wipe it all and start again? The hard drive defrags fine in Diskeeper and Windows XP defrag. Help!! I can't work!!