On my Windows 2008 system, I've attached an external USB drive that's encrypted using Truecrypt. Once I mounted the Truecrypt drive, I share some of the directories from that drive using Windows file sharing. I tried sharing a folder called "media" and when I try to access that folder from a Vista client on my LAN via \myserver\media, I get this error:

\myserver\media is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.

An unexpected network error occurred.

If I share the folder media under some name such as fizzbuzz then I can access \myserver\fizzbuzz w/o any errors.

Any clues as to why this is happening?

Related: http://serverfault.com/questions/27684/windows-2008-and-truecrypt-how-to-automatically-mount-shared-folders-after-rest