Brink - thank you for that advice!
I followed the instructions exactly: I created a new file on another drive called "My Pictures" which is what the Pictures folder is called under the "start" menu (instead of "Pictures" which is the title of that folder under the "Libraries" Folder).
I clicked on "yes" at the end when it asks if I'm sure I want to change the location...but, unlike the instructions... I still have a duplicate copy of all my pictures files/folders on the C drive??!!
According to the instructions, the original location/folder and files should have disappeared altogether and been moved to only the new/specified drive.
What did I do wrong? I followed each step exactly as outlined.
Thanks for your help and patience!