fstab mount on reboot not working

[mk01]

ok now I have the feeling we are hitting two problems one maybe solved masked by the other.
can you refer to this post ?

and the linked link http://forum.xbian.org/thread-1770-post-19570.html#pid19570

(if you have "nfs" type in fstab, the new joined mount helper is trying nfs4 first. unfortunately under some conditions can't fallback correctly. according to the last changes in man pages around nfs, stating the vers= is highly recommended).