Where do I find the most expert nfs help?

Greetings;

I have a weird problem in that I seem to be able to access the remote machine, except for the most important directory on it, /home. An ls /net/machine/home ls: cannot access /net/shop/home: Stale NFS file handle

Expected this sudo ls /net/shop/root permission denied

But every other actually exists on the drive directory is ls'able. I've restarted all the nfs related stuff, everything but rebooted this machine.

Subject says it all. I need to find the experts.

Cheers, Gene Heskett