Cannot change file properties in a network drive!

Hi, I'm trying to change file properties of files stored in a network

mapped drive. For example a go to file properties > summary > Title

example >> Ok. Then when I'm going to see the Title (putting Windows

Explorer in Details View) it appear in blank. These don't happen if I

put directly the Title from the computer that I'm accessing through

network.

Any suggestion will be really appreciate.

Working in:

Windows XP SP2