Errors running install.php

Hi:

New to WP and trying install v 2.8.4 with a new MySQL database, but receive the below error when trying to run install.php. All the required information in the wp-config.php file is correct…but, as a new user, I’m obviously missing something.

TIA

Warning: include_once(D:\XXX\XXX\XXX\XXX/wp-includespomo/mo.php) [function.include-once]: failed to open stream: No such file or directory in D:\XXX\XXX\XXX\XXX\wp-settings.php on line 307

Warning: include_once() [function.include]: Failed opening D:\XXX\XXX\XXX\XXX/wp-includespomo/mo.php’ for inclusion (include_path=’.;C:\php5\pear’) in D:\XXX\XXX\XXX\XXX\wp-settings.php on line 307

Fatal error: Class ‘Translations’ not found in D:\XXX\XXX\XXX\XXX\wp-includes\l10n.php on line 407