i have 2 hard drives on my pc the first is 4ogb the second is 20 gb im running xp on the first drive c: & d: and Dr dos 7 (hidden C: 500mb) & E: (were the problem is) on the second drive. the problem is that recently i put some files on E: and within minutes when i tried to access them XP told me that i dont have permission to access them (WHAT!!). so i removed all other partitions on that disk and the problem is still there ive only ever used NTFS compression once and that was about 4 re-installs ago & i dont need to use the encryption feature because i dont share my pc so i dont think it is a security certificare issue, yes i am logged in as administrator,yes ive tried chkdsk with a variety of switches and ive also tried various dos tools to check the disk but i dont want to lose all the data on e: so i havnt done a full surface test or a secure deletion one more point , i use partition magic 7 pro to edit all drives is this known to cause file system errors !!!??? "PLEASE HELP ME OBI-WAN YOURE MY ONLY HOPE"