SMB Shares Mount but don't contain files

I have been using XBMC for some time with my jailbroken ATV2 and NAS without difficulty.  Today, I “sprang” for aTV Flash as it looked like a more polished solution for my family.  When I try to mount my NAS, (a Verbatim Mediashare 1TB) as a SMB share in the “Media” section, and try to explore those shares, I get an error message which states “No playable files found”.  With XBMC, I has always able to explore the NAS, and add specific directories, but I can’t seem to do this with aTV.  What am I doing wrong, or is this a bug?