While trying to load the downloaded program

Japanese IME, I receive the following error during the
installation

Error 1335. The cabinet file 'Data.Cab' required for this
installation is corrupt and cannot be used.  The could
indicate a network error, an error reading from the CD-
ROM, or a problem with this package.


I have no idea what the Data.Cab file is or where it is
located.

I ran a repair installation of MS OFFICE XP, but I get the
same error when trying to run the Japanese IME program.

Since, I am not loading from CD-Rom this is not the
problem and my network connection is open, and I disabled
my Symantec Firewall program during the, but to no avail...

Does anyone have any suggestions?  I will try downloading
the program again in the meantime.

Thanks,

FZ