[AccessD] security issue with Office XP

We are on a Novel Network.  When we create a database on the sun server
downstairs, those of us with AccessXP cannot execute it from the server.
Even though we have execute rights on the server and on the files.  The
operating system on the box is Unix.  When we try to execute an mdb residing
on the server we get this message:

"Microsoft Access cannot open this file.  This file is located outside out
intranet or on an untrusted site.  Microsoft Access will not open the file
due to potential security problems.  To open the file, copy it to youro
machine or an accessible network location."  

We have to copy it to our hard drives as we use really large databases and
they won't store on any of the other servers in the department.  Those of us
with windows 2000 or windows 98 do not have any trouble executing any Access
databases on the server.  Even those created in XP.  

Can someone help us out of this situation?  Thanks.