Unable to display more than 72 folders with Filter = Folder setting

Just bought the new WD TV Live SMP 2011 model.  First time user with WD media devices. 

Connected it up to a USB powered drive with over 800 folders of videos.

When I set the browse filter to ALL I can scan through alphabetically all the video files irrespective of folders they are in.  However when I set the filter to FOLDERS, it only seems to show the first 72 folders! Would prefer to use this last setting if I can.

Any help greatly appreciated!

I do have over 600 folders and the device display it all. Have you tried to force a scan, after changing to folder view?

Yes, that worked !! Thank you.