I can confirm the best results on all NFS servers I have tested with the Mede8er (inc Windows7) is HaneWIN
Simple setup instructions
1) Download
UPDATE http://www.hanewin.net/nfs-e.htm2) Install
3)
xxxxxx IMPORTANT xxxxxxxxx Allow following exe's in "Windows Firewall"
Directory -- c:/Program Files/nfsd
a) pmapd.exe
b) nfssrv.exe
c) nfsd.exe
4) HaneWIN settings

5) Edit exports file then select "save" then select "Restart server"
exports example for whole drive
e:\ -public -name:e
export example for folder
d:\movies -public -name:movies
6) On the Mede8er
a) Navigate to the NFS icon and enter
b) Press the Menu button on the remote
c) Enter IP of the host PC or server
d) Enter Mount name
example for whole drive --- 192.168.0.10:/e
example for folder --- 192.168.0.10:/movies
Now you should be able to navigate to your NFS shares
In my case my host PC is connected directly to a 10/100 router and then to a 1GB switch. I have found that if you connect the Host PC directly to the 1GB switch you cannot transfer at max speed and need to change Max NFS transfer size to 8192 (bytes) NB - (Not Required for X2 and X3 Series)
Update 10 December 09 (Not Required for X2 and X3 Series)
Enable "Flow Control" on your network card settings for use on 1GB switch
I hope this is useful
Mede8er1