[Plugin: WordPress Wiki] Interferes with Pages

After activating WP Wiki any static Pages you create cannot be accessed. Attempting to open Pages produces an error along the lines of “Sorry, we can’t find the content you’re looking for at this URL” or possibly a 404 access error depending upon theme. Pages created before activating WP Wiki are fine. Deactivating WP Wiki instantly renders Pages accessible. Latest version of WP 3.1 in multi site multi user mode.