@ Iceman-X

thanks for the hint of another missing table_prefix
@ Wential
Browsers and OS are identified from the file
/includes/functions_statistik.php so please check if this file is in that directory.
In that file the the Browsers are identified by
getenv("HTTP_USER_AGENT") and a listing with the Browsernames.
Is only Browsertyp and OS version not identified by the statistics ?