Also tried a program called "gmote" at
www.gmote.org which claims to be in Beta right now for playing files from shared media directorys. There is a server side for your PC, and a client side for the Android device.
I was unable to stream some of my encoded mp4 files using gmote. These are the same mp4 files that play just fine on the NC's micro-SD card. So, for now, that's a no go.
Sorry. I would guess something will be working in another couple months.