Root doesn't have permission to change permissions?

[Steel City Phantom]

I have a mount point on my bsd 6.2 machine.  my startup does an nfs 
mount to the mount point.  i had to reboot the other machine and now my 
bsd machine can't access the mount point or the share.

drwxrwxrwx   2 4294967294  4294967294    64B Dec 26 18:42 MP3


here is the mount command that is used

mount 192.168.0.51:/MP3 /usr/local/drive_h/MP3

when i try to delete the mount point and recreate it i get the message 
device busy, when i try to change owners of the directory as root it 
says i don't have permission.

any ideas