Hard drive modification date question..

I have a new seagate external hd and I have a question as why my modification dates will not change when I add new material to them

The modification date for the folders stays the same with the first time you create it.

I like to sort by modification dates but it does me no good if they don't change when somethign is added to the folder.

Thanks in advance,

slatimer

 

using windows xp...folder modification dates still won't change