FC2: error while getting quota on a Solaris server

[David Jansen]

Is there a way to get FC2 to understand disk quota on a nfs mounted disk
served by a Solaris server? FC1 and RH7-9 were doing just fine, but now
I get:
$ quota -v
quota: Error while getting quota from noordzee:/export/home for 531: Invalid argument
Disk quotas for user jansen (uid 531): 
     Filesystem  blocks   quota   limit   grace   files   quota   limit   grace
      /dev/hda7       0       0       0               0       0       0        
  schelde:/data 12896576       0       0           52815       0       0       

server noordzee is the Solaris machine which serves our home disk,
server schelde is a Linux (FC1) system from which I have a disk mounted. 
This also shows that nfs quota is working in FC2, but there must be some
compatibility issue between FC2 and Solaris.

The fstab entry is:
noordzee:/export/home   /home                   nfs     defaults,nfsvers=3,hard,intr,rsize=8192,wsize=8192      0 0

but the same thing happens with just 'defaults' or defaults,nfsvers=3

Does anyone have a solution for this situation?

David Jansen