Office2003 won't work correctly for non-admin when logged on

Office 2003 problems occur for users who are not admins, when they are logged
in as users on the domain. 1) Access error - 'collating sequence not
supported' 2) Word Macro error -- 'VBE6ext.OLB could not be loaded' 3)
Excel error -- missing library. Each time the user launches Word, the
installer dialog appears. Office works correctly for admins on the network.
Office works correctly for users and admins when logged into machine locally.
If the user logs into the domain as a user, these problems occur. Office has
been installed and reinstalled. Is there a network policy causing this? If


so, can you tell me how to fix this? These problems happen on every computer
for every user (20 users). Thank you.