Upgraded to Pro 3.7 But Media Doesn't Show in Xbox

Had to reinstall my pc’s operating system and couldn’t find my old reliable version of TVersity, so bought Pro. 3.7, but after i designated folder of all my media to be earmarked for sharing, none of it is showing up in my Xbox 360 library even tho Tversity gives me message “Content source already exists”…? Any help greatly appreciated.

thanks,
Chris D

Did you wait long enough for the content to be indexed? Also, can you try disconnecting the Xbox from the PC and then reconnecting it?