[CentOS] nfs4 help needed

Fedora 13 is using nfs4, and there is a problem in opening files requiring 
OpenOffice if accessed over an nfs3 mount, so it's time to change.  I found a 
couple of tutorials, and got it *almost* working correctly.  This is where I 
need help.

Logwatch tells me

/nfs4exports/Data1 and /Data1 have same filehandle for 
*,192.168.0.0/24,192.168.0.0/255.255.255.0, using first

The tutorial I was following suggested making a root connection as ro, then 
the data connections as rw, so I have

/nfs4exports        192.168.0.0/24
(ro,sync,insecure,root_squash,no_subtree_check,fsid=0)
/nfs4exports/Data1  192.168.0.0/24(rw,insecure,no_subtree_check,nohide)
/nfs4exports/home   192.168.0.0/24(rw,insecure,no_subtree_check,nohide)

However, when I ls nfs4exports I get

Data1  home

which ties in, I think, with the logwatch report.  Can someone please explain 
what I've misunderstood, and what I should do to put it right?  Thanks

Anne