[Wlug] NFS, anyone?

Hi, I have a server running Mandrake 8.2. I had a problem unmounting a CDROM (I hate supermount!), so I rebooted the server. On the way back up, the NFS service hung. This is now the second time this has happened. (The first time, I attributed it to students messing with the server, and reinstalled everything.) Now, after two days of getting things back to normal, it's happened again, this time sans students. I'm writing this from home, as the school's link to the Internet is down. Anyone know where the relevant state data for NFS is stashed? Thanks, Skip