On a Windows 2000 Professional client machine, I have a handful of .XLS files that have all of a sudden gotten the Archive attribute set (I've confirmed this also from a command prompt)... here's where it gets interesting... I cannot change the properties of these files from either the default Administrator account or from my own (which is also a full administrator account). I get an error when attempting to change the attributes that I don't have proper permissions to modify, or even open the file for that matter. Any clues???