i have a windows 2003 domain where i have strange problem. One of our file shares is on a 2003r2 domain controller, xp clients trying to copy files on the share are always getting the error

error copying file or folder

filename could not be copied. path too long

while windows 7 clients work fine.

Nothing unusal is found in the eventlog on both the server and the client. It doesn't matter if i access the share by fqdn or ip, the path is including filename shorter than 20 characters i.e. \path\share\file.txt

Copying files to other servers is fine. Reading from the shares is ok too. Happened from one day to the other, one windows update that was installed this day (kb2736233) was removed but nothing changed.

thanks for any tips