I have an 80gigabyte seagate drive partitioned into 2 (C & D) drives 1 for the OS and the remaining for backup. I am using windows XP home. Drive D reports it is 45% used but when you click to see the contents of the drive, there are no folders or files, in explorer and in DOS. I know there are files that I backed-up in there but now I cannot access them. Just 3 weeks ago I accessed the files and folders but this week, windows explorer's "My Computer" reports the drive as with content but you cannot see any files or folders. Tried to use also DOS but to no avail. Is there a solution or cause for this mysterious behavior?