Office 2007 Enterprise Serial Strange network prob

[please70439]

Have a really strange problem with a new vista company computer in network,Office 2007 Enterprise Serial
with Windows 2003 Server R2 SP2.
On the list of network drive maps H: is made up of doc/pix/xls and so forth. I can entry the
network drive by means of Explorer and copy/delete/change name of files and many others from the
Vista Home pc.
When I start out Word2007 and load a document from your network drive it really is not
attainable to "save" or "save as" on the network drive. Word make filename but
it is 0kb. If I take "save as" and store the change document on Vista
Laptop or computer desktop it can be no predicament. And the very odd thing is that I later
can duplicate this file from Vista desktop into same place on network drive
without errors after closing Word. Same problem is on Excel files.
Nice if anyone have som suggestion. All Windows Updates are installed on
Vista and Office.
Thanks in advance.