windows filenames

[cdv]

Hi all !

Since I'm tired to google, I've decided to post my question here, 
hoping to get an answer.

At the company I work we keep our CVS repositories on a Linux machine.
The problems is, when some one puts a file like "MyFile.txt" in a directory 
and commits it, and then some one else puts a file like "Myfile.txt" and also 
commits it, on linux machine both files are accepted. This is ok, of course, 
since under Linux filenames are case sensitive.

But when a windows client checks out an entire module, he can get only 1 file 
from 2.

My question is: How can I set up CVS server to deny adding of a file to a 
folder in repository when there is a file with "the same name from windows 
point of view" ?

OnAdd: If (lowercase(addedfilename) in lowercase(repository_filenames[]))  
             then Fail;

My configuration(s):

---- Server ---
Concurrent Versions System (CVS) 1.11.5 (client/server)
Using pserver through xinetd.
Linux RH 7.3

---- Client ----
Workstations: Windows 2000. 
WinCVS 1.2 & 1.3
Concurrent Versions System (CVSNT) 1.11.1.3  (Build 57k) 

Thanks !