Error 1325 (not valid short file name) during JRE setup

Attempting to setup tle latest version of JRE on Windows XP Pro (either with online or offline setup), after configuration check, an error message box appears, saying

"Documenti is not a valid short file name"

The related error code is 1325.

What may be the cause of this issue?

Thanks in advance :-)

[331 byte] By [@dm@a] at [2007-10-3 1:39:43]